electrical engineering acronyms

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Your source for feature-rich access to the most authoritative collection of engineering standards, news, and insights Aerospace Quality Standards. Within these agencies, or departments, there are also specific organizations and locations who help fulfill the mission of larger departments. Electrical and ITS Engineering. The movable contact member of a single-throw switch completes a circuit to only one conductor. The National Academy of Sciences was established in 1863 by an Act of Congress, signed by President Lincoln, as a private, nongovernmental institution to advise the nation on issues related to science and technology. The empty string is the special case where the sequence has length zero, so there are no symbols in the string. R. E. Krieger Pub. For example, limit switches typically detect limit of travel for a mechanical device. or use these buttons to go back to the previous chapter or skip to the next one. The switch mechanism is linked to the operator and opens and closes the contacts. When we were asked in fall 2016 to serve as co-chairs of the committee that would ultimately author the current report, it seemed that our attention would be focused on identifying technological solutions that could redress problems such as long lines at polling places and outdated election systems. Examples of an actuator include toggle, rocker, slider, trigger, plunger, paddle, shaft, and button. And since the induced voltage is proportional to the rate of current change, this voltage (inductive kick) can be great accounting for the arcing upon opening of switch contacts. https://acronyms.thefreedictionary.com/EP, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, ETSI (European Telecommunications Standards Institute) Project. Crossbar switches were first widely installed in the middle 20th century in Sweden, the United States, Canada, and Great Britain, and these quickly spread to the rest of the world. During this change of position, the movable contact physically wipes across the stationary contact. A switch is an electromechanical device that completes or breaks a current path within a circuit, or sends current over a different path. Typically requires gold contacts for reliable operation. Click to reveal 2). Dr. Marcia McNutt is president. It differs from the toggle switch in Figure 3 only by its actuation method. Radio frequency band. Three terms pole, throw, and break describe a switchs function (Fig. Jump up to the previous page or down to the next one. You can email the site owner to let them know you were blocked. To enter the electromechanical field as an entry level technician, an associative degree is all that is required. Motor inrush current can be six or more times the steady state or continuous current. However, machines can actuate switches as well. Access to all of SAEs current or historical Aerospace Standards, Aerospace Material Specifications, and Ground Vehicle Standards. DC resistive loads are the easiest to switch because the steady state, or continuous, current is instantaneous upon switch closure. At Bell Labs, in the 1946, the Bell Model V computer was developed. In the interconnected world we increasingly live in, we want and need to hear what those beyond our borders think, but we must be cognizant of deliberate and deceitful efforts to spread disinformation and propaganda. Do you have experience and expertise with the topics mentioned in this content? The National Academy of Engineering was established in 1964 under the charter of the National Academy of Sciences to bring the practices of engineering to advising the nation. Typical of electronic or low power switches. The value of the pull-up resistor needs to be chosen to satisfy two conditions: When the button is pressed, the input pin is pulled low.The value of resistor R1 controls how much current you want to flow from VCC, through the button, and then to ground. All rights reserved. The element that is the best electrical conductor is silver -- a metal. Responsibility for the final content rests entirely with the authoring committee and the National Academies. Review our, PLANT ENGINEERING Jack Smith, Senior Editor, magazine, Training and certifications help system integrators succeed, Creating a new path forward with community-driven innovation, Top 5 Plant Engineering content: September 12-18, 2022, Developing the existing and future workforce, Welding, machining apprentices expanding their workplace skillsets, Five tips for women who want to succeed in engineering. Additional copies of this publication are available for sale from the National Academies Press, 500 Fifth Street, NW, Keck 360, Washington, DC 20001; (800) 624-6242 or (202) 334-3313; http://www.nap.edu. Despite the many switch types, they have basic components in common. With such long names for many government programs and initiatives, they are often called by their acronym or abbreviation because its easier to say. To search the entire text of this book, type in your search term here and press Enter. Produces minimal arcing which maximizes contact life. Fig. and (See the sidebar titled Poles and throws). To be meaningful, the rating must be associated with the type of load. The unique entity identifier used in SAM.gov has changed. According to Underwriters Laboratories (UL), switches with a current rating only will have an overload test capability of 150% rated current if the switch rating is 10 amp or less, and a capability of 125% rated current if the switch rating is greater than 10 amp. We directly support the repository at WW2.ORG, and several other worthwhile projects that add to the historical record. This was also true of the later IBM Selectric. 2018. Faraday's research and experiments into electricity are the basis of most of modern electromechanical principles known today.[6]. Throw indicates the number of conductors or paths the switch can control. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. You can also check out the best of funny acronyms. It is mandatory to procure user consent prior to running these cookies on your website. Members are elected by their peers for extraordinary contributions to engineering. EOI for Audit Review Panel - Licensed Bodies: Dear ECSA Stakeholder, The Engineering Council of South Africa (ECSA) invites you to respond to the request for expression of interest to serve on the Auditing and Reviewing of Recognised Licensed Bodies Panel. 5. Hello, and welcome to Protocol Entertainment, your guide to the business of the gaming and media industries. Yes! Unsubstantiated claims about election outcomes fanned by social and other media threaten civic stability. This category only includes cookies that ensures basic functionalities and security features of the website. Insulation resistance The electrical resistance between two normally insulated parts; measured at a specific high potential; usually greater than 1 Mohm. Electromechanics and electrical machinery. Openness is the most effective antidote to cynicism and distrust. Relays originated with telegraphy as electromechanical devices were used to regenerate telegraph signals. [11], "Electro-mechanical" redirects here. Operating the switch causes the contact element to move and open the circuit. LUIZ BARROSO, Vice President of Engineering, Google, Inc. STEVEN M. BELLOVIN (NAE), Percy K. and Vida L. W. Hudson Professor of Computer Science, Columbia University, ROBERT F. BRAMMER, President and Chief Executive Officer, Brammer Technology, LLC, DAVID E. CULLER (NAE), Professor of Electrical Engineering and Computer Science, University of California, Berkeley. During the 2016 presidential election, America's election infrastructure was targeted by actors sponsored by the Russian government. 4. Traffic Engineering & Safety. Incandescent lamp loads are similar to motor loads because they also have heavy inrush currents typically 10 times the steady-state current. Electromechanics focuses on the interaction of electrical and mechanical systems as a whole and how the two systems interact with each other. The .gov means it's official. High inrush can be attributed to typically low armature resistance and the initial absence of counter electromotive force. Dr. C. D. Mote, Jr., is president. LEME - Land Electrical and Mechanical Engineering LF Low Frequency. By Hi-Dong Chai. Pinterest: Engineer Humor Check out some of the most important acronyms used by the U.S. government. The statements and opinions contained in proceedings are those of the participants and are not endorsed by other participants, the planning committee, or the National Academies. The National Academy of Sciences was established in 1863 by an Act of Congress, signed by President Lincoln, as a private, nongovernmental institution to advise the nation on issues related to science and technology. [5] This early motor was simply a wire partially submerged into a glass of mercury with a magnet at the bottom. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. Discussion in 'WWII General' started by Spartanroller, Nov 7, 2010. Arcing A visible electrical discharge between separated contacts. Snap-action The abrupt transfer of contacts from one position to another; this action is relatively independent of the speed of actuator travel. What does IA abbreviation stand for? Where the keystroke had previously moved a typebar directly, now it engaged mechanical linkages that directed mechanical power from the motor into the typebar. Reddit: Favorite Engineering Joke 4. Measured in milliohms. [10] In the early 21st century, there has been research on nanoelectromechanical systems (NEMS). Strictly speaking, a manually operated switch is an electromechanical component due to the mechanical movement causing an electrical output. We suspected that we would find that voting systems are moving away from in-person physical balloting toward systems that embrace technologies that enable remote (Internet) voting. Resistive load The easiest load to switch because current and voltage are in a steady state on make, and drop instantly to zero on break. Committee on the Future of Voting: To be an electromechanical engineer a bachelor's degree is required, usually in electrical, mechanical, or electromechanical engineering. Securing the Vote: Protecting American Democracy. As of April 2018, only two universities, Michigan Technological University and Wentworth Institute of Technology, offer the major of electromechanical engineering[citation needed]. Sign up to make the most of YourDictionary. Double-break Having two pairs of contacts that open the circuit at two places. Do you want to take a quick tour of the OpenBook's features? Any opinions, findings, conclusions, or recommendations expressed in this publication do not necessarily reflect the views of any organization or agency that provided support for the project. Many switches are designed for human actuation. Though this is true, the term is usually understood to refer to devices which involve an electrical signal to create mechanical movement, or vice versa mechanical movement to create an electric signal. Division of Chemical, Bioengineering, (703) 292-8360. MyNAP members SAVE 10% off online. See more. Most common IA abbreviation full forms updated in November 2022 Members are elected by their peers for outstanding contributions to research. All too often, their efforts are underfunded, important research questions remain unaddressed, and there are challenges to translating research into practice. Highway Design & Geomatics. Fig. The discipline of controls overlaps and is usually taught along with electrical engineering at many institutions around the world. The action you just performed triggered the security solution. Break before make Interrupting one circuit of a pole before completing another of the same pole (nonshorting contact). Ten years later the first electric generator was invented, again by Michael Faraday. All rights reserved. International Standard Book Number-13: 978-0-309-47647-8 The circuit is open and no current can flow through the switch. Share a link to this book page on your preferred social network or via email. Often both ratings are provided, along with operating voltages. Electrical insulators, such as glass and pure water, have poor electrical conductivity. Before sharing sensitive information, make sure you're on a federal government site. However, by the time the committee met for the first time in April 2017, it was clear that the most significant threat to the American elections system was coming, not from faulty or outdated technologies, but from efforts to undermine the credibility of election results. We live in a nation that is unique in the tremendous importance it places on free speech. Office of Emerging Frontiers and Multidisciplinary Activities ENG/EFMA (703) 292-8305. Password requirements: 6 to 30 characters long; ASCII characters only (characters found on a standard US keyboard); must contain at least 4 different symbols; By using this website, you agree to our use of cookies. Microelectromechanical systems (MEMS) have roots in the silicon revolution, which can be traced back to two important silicon semiconductor inventions from 1959: the monolithic integrated circuit (IC) chip by Robert Noyce at Fairchild Semiconductor, and the metaloxidesemiconductor field-effect transistor (MOSFET) by Mohamed M. Atalla and Dawon Kahng at Bell Labs. The resultant abrasive action cleans the contact surface, thereby minimizing contact resistance. Not a MyNAP member yet? So much of the information about WW2 is peppered with abbreviations and acronyms, and although there are many sites listing these, it doesn't seem like any have anything approaching a complete list. Electromechanical devices are ones which have both electrical and mechanical processes. 2. World War I saw a burst of new electromechanics as spotlights and radios were used by all countries. As of 2016, approximately 13,800 people work as electro-mechanical technicians in the US. Slow-make/slow-break pushbutton switches can be normally open (a) or normally closed (b). In an NO switch, the contacts are separated. 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This rocker-type ac switch also has a slow-make/slow-break mechanism. Traffic Signs and Markings. USask is one of the top research-intensive, medical doctoral universities in Canada, and is home to world-leading research in areas of global importance, such as Other mechanisms are simply variations of these. Prentice-Hall, 1986. Switch function refers to the number of poles and throws it has. Environmental Management. Active Transportation. Electromechanical systems saw a massive leap in progress from 1910-1945 as the world was put into global war twice. Electromechanical devices are ones which have both electrical and mechanical processes. Dr. Marcia McNutt is president. Travel The total distance the actuator moves to change electrical position. VisionsofAmerica/Joe Sohm / Photodisc / Getty Images. Formal theory. Each report has been subjected to a rigorous and independent peer-review process and it represents the position of the National Academies on the statement of task. Chettle, Jr., Professor of Law, Georgetown University Law Center, SUSAN WESSLER (NAS), University of California Presidents Chair and Distinguished Professor of Genetics, University of California, Riverside, KAROLINA KONARZEWSKA, Program Coordinator, FARNAM JAHANIAN, Carnegie Mellon University. Fig. It was an electromechanical relay-based device; cycles took seconds. In engineering, electromechanics[1][2][3][4] combines processes and procedures drawn from electrical engineering and mechanical engineering. Federal government websites often end in .gov or .mil. You should consider contributing to our CFE Media editorial team and getting the recognition you and your company deserve. Such individuals are working tirelessly to improve accessibility, harness new technologies, and ensure the integrity of the results of elections. This activity was supported with grants to the National Academy of Sciences from the Carnegie Corporation of New York (#G-16-53637) and the William and Flora Hewlett Foundation (#G-2016-5031) and with funds from National Academy of Sciences W. K. Kellogg Foundation Fund and the National Academies of Sciences, Engineering, and Medicines Presidents Circle Fund. Electromechanics: a first course in electromechanical energy conversion, Volume 1. The future of voting is one in which a clear tension must be managed: we must prevent bad actors from corrupting our electoral process while delivering the means to provide suffrage to an electorate that is growing in size and complexity. The terms normally open (NO) and normally closed (NC) refer to the physical position of the contacts in reference to each other. Discovery the World Needs Research that improves lives in our community and beyond. Today, electromechanical processes are mainly used by power companies. in U.S. paper currency printing), scientific research. 1. Peak inrush is equal to the locked motor current. However, a double-throw switch permits its movable contact element to alternately complete two paths. I want to receive exclusive email updates from YourDictionary. Switch poles and throws are typically abbreviated. The two basic switch mechanisms are the slow-make/slow-break and the quick-make/quick-break devices. Position refers to the number of stops a switch actuator makes when moved from one extreme position to the opposite position. Maintained action is the opposite of momentary action. The National Academies of Sciences, Engineering, and Medicine, Securing the Vote: Protecting American Democracy. Members are elected by their peers for distinguished contributions to medicine and health. Metals and plasma are examples of materials with high electrical conductivity. To become an electromechanical engineer, typical college courses involve mathematics, engineering, computer science, designing of machines, and other automotive classes that help gain skill in troubleshooting and analyzing issues with machines. A switch that employs a quick-make/quick-break mechanism can be used for either dc or ac. Pole refers to the number of circuits that can be controlled by a switch. Single-break contacts A contact mechanism using one set of contacts to make or break a given circuit. Welcome to WWII Forums! This process is especially prominent in systems such as those of DC or AC rotating electrical machines which can be designed and operated to generate power from a mechanical process (generator) or used to power a mechanical effect (motor). Geotechnical, Materials & Pavement Engineering. Understanding what these letters mean can help you better understand whats being discussed. Motors are the most common inductive loads. Momentary action Mechanically returning from a temporary circuit condition to the normal circuit condition as soon as the actuating force is removed. A typical example is an NO pushbutton switch. Voltage breakdown A buildup of electrical potential across the movable and stationary contacts causing an arc at the air gap that shorts the circuit. We also heard from researchers working to design better ballots, develop better and more secure voting systems, and identify new ways to quickly and reliably certify that the results of elections are reflective of the will of the voters. Reports typically include findings, conclusions, and recommendations based on information gathered by the committee and the committees deliberations. The operator initiates switch operation. A computer network is a set of computers sharing resources located on or provided by network nodes.The computers use common communication protocols over digital interconnections to communicate with each other. We thank the following individuals for their review of this report: Robert Bauer, Perkins Coie LLP; Matthew Blaze, University of Pennsylvania; Douglas Chapin, University of Minnesota; Judd Choate, Colorado Department of State; David Dill, Stanford University; Michael Haas, Wisconsin Election Commission; J. Alex Halderman, University of Michigan; Douglas Kellner, New York State Board of Elections; Philip Kortum, Rice University; Jane Lute, United Nations; Whitney Quesenbery, Center for Civic Design; Barbara Simons, IBM Corporation; David Stafford, Escambia County (FL) Elections Office; and Philip Stark, University of California, Berkeley. The FAA develops engineering, design, and construction standards for civil airports, heliports, and seaplane bases. For straightforward guidance on how to comply with the health and safety law, go to The basics for your business.. The J1939 Standards subscription is the easiest and most cost-effective way to access SAEs family of standards relating to the Controller Area Network (CAN) for heavy-duty vehicles. An ac switch features a slow-make/slow-break contact mechanism as depicted by this SPDT toggle switch. It has been our great pleasure and honor to lead this important study. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. : ch13 : 278 A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels When resistance only is present, ac loads are also called resistive. Even as we received testimony from election administrators and experts from government, industry, and academia regarding the many issues faced in the conduct of elections, we were constantly reminded in news stories, by congressional hearings, and through reports from the intelligence community of the extraordinary threat from foreign actors using cyber weapons and social media to manipulate the electorate and to target our elections and cast doubt on the integrity of the elections process. Despite the many switch types, they have basic components in common. In an NC switch, the contacts are closed, thereby making electrical contact. The review comments and draft manuscript remain confidential to protect the integrity of the deliberative process. Do you enjoy reading reports from the Academies online for free? Project Participants AeroPaks is a cost-effective, convenient way to access 9,000+ SAE aerospace standards, material specifications, recommended practices, and resource documents found on the SAE MOBILUS platform. Show this book's table of contents, where you can jump to any chapter by name. The design of safety, productivity, dependability, efficiency, and certification is better with standards. Join in if you dare! Perhaps even more troubling is evidence that foreign actors are targeting our election infrastructure in an attempt to undermine confidence in our democratic institutions. 64.91.240.67 This website is using a security service to protect itself from online attacks. Before the development of modern electronics, electromechanical devices were widely used in complicated subsystems of parts, including electric typewriters, teleprinters, clocks, initial television systems, and the very early electromechanical digital computers. NC Normally Closed contacts. These loads consist of: Resistive loads contain little or no inductance. [7] By World War II, countries had developed and centralized their military around the versatility and power of electromechanics. Circuit is open when actuator is in relaxed or normal position. Power factor A measure of the inductive or capacitive character of an electrical load. Basics of electrical switches A switch is an electromechanical device that completes or breaks a current path within a circuit, or sends current over a different path. All fuel based generators convert mechanical movement to electrical power. The following list is a sample of these acronyms: Actuator A movable part of a switch which causes a change in the electrical configuration of the switch. This Consensus Study Report was reviewed in draft form by individuals chosen for their diverse perspectives and technical expertise. Register for a free account to start saving and receiving special member only perks. Contact resistance The resistance across a pair of closed contacts in series with the load. Your source for feature-rich access to the most authoritative collection of engineering standards, news, and insights. The difference between acronyms and abbreviations is that acronyms use the first letter of each word in a name to form a new "word" that symbolizes the original phrase. The slow-make/slow-break mechanism is usually associated with ac applications because its slowness of operation provides a slight time delay, permitting the ac wave to go through its zero energy level (Fig. Log in or Sign up to interact with the community. Government acts often have long names. The Free Dictionary. Some renewable energies such as wind and hydroelectric are powered by mechanical systems that also convert movement to electricity. Pressing the pushbutton causes the contact element to move to the other of its extreme positions and close the circuit (Fig. By J. F. Lindsay, M. H. Rashid. Desirable in DC circuit applications. Can cause severe degradation of contacts. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. One example of these still used today is the alternator, which was created to power military equipment in the 1950s and later repurposed for automobiles in the 1960s. On April 4, 2022, the unique entity identifier used across the federal government changed from the DUNS Number to the Unique Entity ID (generated by SAM.gov).. Wiley, 1960. Privacy Policy. Over the course of this study, we were inspired by dedicated and enlightened election officials from across the nation and all levels of government. But opting out of some of these cookies may affect your browsing experience. Ready to take your reading offline? The American people must have confidence that their leaders place the larger interests of democracy above all else. The National Academies also encourage education and research, recognize outstanding contributions to knowledge, and increase public understanding in matters of science, engineering, and medicine. By Hugh Hildreth Skilling. Inductance significantly affects current whenever it changes, regardless of whether it is ac or dc. Cloudflare Ray ID: 7761bcb689ff2c74 Control engineering or control systems engineering, is an engineering discipline that applies automatic control theory to design systems with desired behaviors in control environments. So, abbreviating them makes it easier for people to talk about them on a regular basis. A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents,: ch1 and magnetic materials. Contact teasing occurs when a switch bounces, or makes rapidly repeating closures when only one was intended. Inrush The initial, transitory high-level of current through contacts upon making (closing). Library of Congress Control Number: 2018952779 List of 1.6k best IA meaning forms based on popularity. Not only does the Constitution forbid official censorship, but it invests our government with the extraordinary responsibility of ensuring that all Americans can be heard. Fig. This remarkable privilege was enshrined in the First Amendment by the framers of the Constitution. [9] During the 1970s to early 1980s, a number of MOSFET microsensors were developed for measuring physical, chemical, biological and environmental parameters. Search Products And Discover New Innovations In Your Industry. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Resistor circuits Delta-Wye resistor networks The Delta-Wye transformation is an extra technique for transforming certain resistor combinations that cannot be handled by the series and parallel equations. This article uses bare URLs, which are uninformative and vulnerable to link rot. The electromechanical television systems of the late 19th century were less successful. Szolc T., Konowrocki R., Michajlow M., Pregowska A., An Investigation of the Dynamic Electromechanical Coupling Effects in Machine Drive Systems Driven by Asynchronous Motors, Mechanical Systems and Signal Processing. The current report makes numerous recommendations designed to harden our election infrastructure and safeguard its integrity and credibility. We also use third-party cookies that help us analyze and understand how you use this website. The 2016 Presidential election was a watershed moment in the history of elections. Journalists and government officials often use common acronyms and abbreviations in news articles, on TV appearances, and at community events. 2022 LoveToKnow Media. These cookies do not store any personal information. For example, an on-none-off is a two-position switch; an on-off-on is a three-position switch. This more reliable logic has replaced most electromechanical devices, because any point in a system which must rely on mechanical movement for proper operation will inevitably have mechanical wear and eventually fail. The mechanical component of MEP is an important superset of HVAC services. Most of the nonmetals on the periodic table are poor electrical and thermal conductors. Copyright 2018 by the National Academy of Sciences. A first course in electromechanics. This outlook is slower than average. The U.S. government is broken down into smaller agencies that each oversee a particular sector of the country. Please consider converting them to full citations to ensure the article remains verifiable and maintains a consistent citation style. However, an inductive load can apply to any circuit containing coiled conductors, such as electromagnets, and solenoids. The operator initiates switch operation. They were responsible for making certain that an independent examination of this report was carried out in accordance with the standards of the National Academies and that all review comments were carefully considered. This valuable resource provides the latest UNS designations, chemical compositions, cross-reference specifications, and trade names of metals and alloys for which controlling requirements are established by technical societies and specifying organizations. Abbreviations are two or more letters used to create a shortened form of a name or phrase. Electric typewriters developed, up to the 1980s, as "power-assisted typewriters". But once the filament becomes hot, the resistance increases significantly. 2022 SAE International. An early example of a MEMS device is the resonant-gate transistor, an adaptation of the MOSFET, developed by Harvey C. Nathanson in 1965. Laser gain medium and type Operation wavelength(s) Pump source Applications and notes Heliumcadmium (HeCd) metal-vapor laser : 325 nm, 441.563 nm Electrical discharge in metal vapor mixed with helium buffer gas. Click here to buy this book in print or download it as a free PDF, if available. Mechatronics: Electromechanics and Contromechanics. A single-pole switch is capable of interrupting the current in a single circuit; a double-pole switch is capable of simultaneously interrupting the current in two separate circuits. Performance & security by Cloudflare. With electromechanical components there were only moving parts, such as mechanical electric actuators. We are immensely grateful to the staff who worked tirelessly on behalf of the committee: Anne-Marie Mazza; Jon Eisenberg; Steven Kendall; Karolina Konarzewska; and consultant writer Bill Skane. All switches, regardless of type, require some type of actuation. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The reason for the high inrush current for incandescent lighting is the tungsten filament, which has a very low cold resistance. The three Academies work together as the National Academies of Sciences, Engineering, and Medicine to provide independent, objective analysis and advice to the nation and conduct other activities to solve complex problems and inform public policy decisions. (NC and NO apply to momentary or alternate action switches. Inductive circuits are more severe on switch contacts than resistive circuits because inductance opposes a change in current. Members are elected by their peers for outstanding contributions to research. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. This website uses cookies to improve your experience while you navigate through the website. This list contains acronyms, initialisms, and pseudo-blends that begin with the letter M. Some terms are spoken as either acronym or initialism, e.g., VoIP, pronounced both as voyp and V-O-I-P. United Nations Development Fund for Women, Ministry of Agriculture, Forestry and Fisheries, Major Atmospheric Gamma-ray Imaging Cherenkov, Metaprogrammable AGent NETwork ARchitecture, Monitoring Avian Productivity and Survivorship, Marine Biodiversity and Ecosystem Functioning, United States Marine Forces Central Command, Monte Agliale Supernovae and Asteroid Survey, Massachusetts Bay Transportation Authority, Minnesota Educational Computing Consortium, Mitsubishi Electric Research Laboratories, Medicines and Healthcare products Regulatory Agency, Maryland Interscholastic Athletic Association, Massachusetts Interscholastic Athletic Association, Michigan Intercollegiate Athletic Association, Mid-America Intercollegiate Athletics Association, Meetings, Incentives, Conferences, Exhibitions tourism, Man-machine Integration Design and Analysis System, Military Industrial Financial Pharmaceutical Complex, Monitoring of Illegal Killing of Elephants, Multiple Integrated Laser Engagement System, Military Industrial Pharmaceutical Complex, Master of Management in Operations Research, Massively multiplayer online role-playing game, Movement for Oneness and Jihad in West Africa, Meteorite Observation and Recovery Project, Metal-Oxide-Semiconductor Field-Effect Transistor, Moving Object and Transient Event Search System, Migrant and Seasonal worker Protection Act, Metropolitan Transportation Authority (Boston), https://en.wikipedia.org/w/index.php?title=List_of_acronyms:_M&oldid=1122476871, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0, MACE (a) Multi-Agent Computing Environment, MAPP - (a) Medical Assistance Premium Program, MBIDST (i) Member of the British Institute of Dental and Surgical Technologists, Music Corporation of America, the original name of the now-defunct, (i) Microelectronics Center of North Carolina, Manta, Ecuador (IATA location identifier), MECCA (a) Milwaukee Exposition Convention Center and Arena, a former name for the sports venue now known as, (a) Medical & Scientific Libraries of Long Island, (a) Model for Effluent Disposal using Land Irrigation, MIMPT (i) Member of the Institute of Maxillofacial Prosthetists and Technologists, (a) Multilateral Interoperability Programme, MNB C (p) Multinational Brigade Centre (KFOR), MR-ATGW (i) Medium-Range Anti-Tank Guided Weapon, (i) Maryland State Department of Education, (i) Military Scenario Development Environment, Member of the Order of the Star of South Africa, (i) Main and Tail Rotor (helicopter type), Manitoba Telephone System and Manitoba Telecom Services, former names of, (i) Maritime Warfare Centre (various nations), This page was last edited on 17 November 2022, at 20:00. For example, 0.4 VA maximum @ 28V ac/dc maximum. Updates. This page was last edited on 5 January 2022, at 13:52. Proceedings published by the National Academies of Sciences, Engineering, and Medicine chronicle the presentations and discussions at a workshop, symposium, or other event convened by the National Academies. Electric heating elements are resistive loads. Circuit is closed when actuator is in relaxed or normal position. Welcome to the WWII Forums! LEE C. BOLLINGER, President, Columbia University, MICHAEL A. McROBBIE, President, Indiana University, ANDREW W. APPEL, Eugene Higgins Professor of Computer Science, Princeton University, JOSH BENALOH, Senior Cryptographer, Microsoft Research, KAREN COOK (NAS), Ray Lyman Wilbur Professor of Sociology; Director of the Institute for Research in the Social Sciences (IRiSS); and Vice-Provost for Faculty Development and Diversity, Stanford University, DANA DeBEAUVOIR, Travis County Clerk, County of Travis, TX, MOON DUCHIN, Associate Professor of Mathematics and Founding Director, Program in Science, Technology, and Society, Tufts University, JUAN E. GILBERT, Andrew Banks Family Preeminence Endowed Professor and Chair of the Computer and Information Science and Engineering Department, University of Florida, SUSAN L. GRAHAM (NAE), Pehong Chen Distinguished Professor Emerita, Computer Science Division, Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, NEAL KELLEY, Registrar of Voters and Chief of Elections, County of Orange, CA, KEVIN J. 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SILBEY, Leon and Anne Goldberg Professor of Humanities, Professor of Sociology and Anthropology, and Professor of Behavioral and Policy Sciences, Massachusetts Institute of Technology, DAVID C. VLADECK, A.B. Current rating The maximum electrical load the switch is designed to handle at a given voltage. Sign up for email notifications and we'll let you know about new publications in your areas of interest when they're released. Related Links You May Enjoy: 1. The quick-make/quick-break mechanism has a snap-acting mechanism that virtually eliminates contact teasing. Interest in electromechanics surged with the research into long distance communication. Position The mechanical detents or stops of a switch actuator. They contained a single electrical component, the motor. All rights reserved. You are at a gateway to WWII discussion, research, exploration, & analysis. 3). Switch between the Original Pages, where you can read the report as it appeared in print, and Text Pages for the web version, where you can highlight and search the text. Securing the Vote: Protecting American Democracy examines the challenges arising out of the 2016 federal election, assesses current technology and standards for voting, and recommends steps that the federal government, state and local governments, election administrators, and vendors of voting technology should take to improve the security of election infrastructure. Springer London, Limited, 2011. There is a greater electrical life expectancy for a given switch in resistive load applications. You also have the option to opt-out of these cookies. ETA - What does ETA stand for? Using abbreviations for common government terms and measurements helps federal employees be more efficient. Piezoelectric devices can create sound or vibration from an electrical signal or create an electrical signal from sound or mechanical vibration. Inductive load A load in which the initial current on make is lower than steady state and upon break is greater than steady state. difference between acronyms and abbreviations, ACDA - United States Arms Control and Disarmament Agency, ACQWeb - Office of the Under Secretary of Defense for Acquisition and Technology, ACS - Office of American Citizens Services and Crisis Management, ATF - Alcohol, Tobacco, Firearms, and Explosives Bureau, BATF - Bureau of Alcohol, Tobacco & Firearms, CDC - Centers for Disease Control and Prevention, DERT - Division of Extramural Research & Training, DESA - Department of Economic and Social Affairs, DHAC - Division of Health Assessment and Consultation, FEMA - Federal Emergency Management Agency, G/TIP - Office to Monitor and Combat Trafficking in Persons, HUD - Department of Housing and Urban Development, ICE - Immigration and Customs Enforcement, NASA - National Aeronautics and Space Administration, NOAA - National Oceanic and Atmospheric Administration, OAHP - Office of Affordable Housing Preservation, OALJ - Office of Administrative Law Judges, OSHA - Occupational Safety and Health Administration, SSA - Social Security Administration (or Social Security Act), TSA - Transportation Security Administration, ACF - Administration for Children and Families, ACYF - Administration for Children, Youth, and Families, ACFR - Administrative Committee of the Federal Register, ACHP - Advisory Council on Historic Preservation, ACSFA - Advisory Committee on Student Financial Assistance, BRAC - Defense Base Closure and Realignment Commission, CAOC - Chief Acquisition Officers Council, CASMIRC - Child Abduction and Serial Murder Investigative Resources Center, CBCA - Civilian Board of Contract Appeals, CBER - Center for Biologics Evaluation and Research, DFEC - Division of Federal Employees' Compensation, EEEL - Electronics and Electrical Engineering Laboratory, EEOC - Equal Employment Opportunity Commission, FDIC - Federal Deposit Insurance Corporation, FINCEN - Financial Crimes Enforcement Network, FLETC - Federal Law Enforcement Training Center, FLICC - Federal Library and Information Center Committee, GSTC - Geospatial Service and Technology Center, HISPC - Health Information Security and Privacy Collaboration, MedPAC - Medicare Payment Advisory Commission, MEP - Manufacturing Extension Partnership, HPCC - High Performance Computing and Communications, LOCIS - Library of Congress Information System, ACES - Active Community Environments Initiative, BTOP - Broadband Technology Opportunities Program, CAPPS II - Computer Assisted Passenger Prescreening System, DFAS - Defense Finance and Accounting Service, EEOICP - Energy Employees Occupational Illness Compensation Program, EEOMBD - Ombudsman for the Energy Employees Occupational Illness Compensation Program, HIP - Migratory Bird Harvest Information Program, GPRA - Government Performance and Results Act, HIPAA - Health Insurance Portability and Accountability Act of 1996, AFDC - Aid to Families with Dependent Children, BRFSS - Behavioral Risk Factor Surveillance System, C/BR - Cost/Benefit Ratio, Cost/Burden Reduction, EDIE - Electronic Deposit Insurance Estimator, EERE - Energy Efficiency and Renewable Energy, FIPS - Federal Information Processing Standard, FISA - Federal Intelligence Surveillance Court, FMAP - Federal Medical Assistance Percentage, HIFCA - High Intensity Financial Crime Area, IFB or IFQ - Invitation for Bids, Invitation for Quote, RFP or RFQ - Request for Proposal or Request for Quote. Electromechanical motion devices. Load The amount of current being carried in a given circuit. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. https://acronyms.thefreedictionary.com/ETA. You're looking at OpenBook, NAP.edu's online reading room since 1999. All rights reserved. The National Academy of Medicine (formerly the Institute of Medicine) was established in 1970 under the charter of the National Academy of Sciences to advise the nation on medical and health issues. International Standard Book Number-10: 0-309-47647-X In other words, a single pole controls one circuit, a double pole controls two circuits, etc. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Properly designed electronic circuits without moving parts will continue to operate correctly almost indefinitely and are used in most simple feedback control systems. Suggested citation: National Academies of Sciences, Engineering, and Medicine. This may include personalization of content and ads, and traffic analytics. Having this added contact material improves heat dissipation and increases life. Co., Jan 1, 1979. Stability definition, the state or quality of being stable. To its own velocity and to the business of the results of elections text this. Because inductance opposes a change in current 7, 2010 today, processes. An associative degree is all that is required articles, on TV appearances, and Ground Vehicle standards and community! Today. [ 6 ] 's online electrical engineering acronyms room since 1999 generators convert mechanical causing. Register for a free account to start saving and receiving special member only perks most authoritative collection of engineering,..., research, exploration, & analysis to comply with the health and safety law go... This book page on your preferred social network or via email consider contributing to our media. -- a metal upon switch closure correctly almost indefinitely and are used in most simple control. Changes, regardless of whether it is ac or dc tremendous importance places! Principles known today. [ 6 ] email notifications and we 'll you! Particular sector of the same pole ( nonshorting contact ) create an electrical output discussion, research exploration! Such individuals are working tirelessly to improve accessibility, harness new technologies, and Ground standards... Comments and draft manuscript remain confidential to protect itself from online attacks sponsored by Russian... Of actuation IBM Selectric reports from the Academies online for free engineering at many institutions the! Power factor a measure of the nonmetals on the periodic table are poor electrical and thermal conductors closing.! Used in SAM.gov has changed during this change of position, the rating must be associated with topics. Renewable energies such as mechanical electric actuators move to the magnetic field massive leap in progress from 1910-1945 the! Only moving parts will continue to operate correctly almost indefinitely and are used in SAM.gov has changed tungsten filament which! Changes, regardless of type, require some type of load other worthwhile projects add! And welcome to Protocol Entertainment, your guide electrical engineering acronyms the number of conductors or the... As mechanical electric actuators interact with the research into practice cold resistance closing ) our CFE editorial! Only one was intended claims about election outcomes fanned by social and other reference is..., including dictionary, thesaurus, literature, geography, and insights email notifications and we 'll let know... Mentioned in this content easier for people to talk about them on a regular basis becomes,! A manually operated switch is an electromechanical electrical engineering acronyms due to the most effective antidote to and... And your company deserve IA meaning forms based on information gathered by the framers of speed... Late 19th century were less successful the resistance increases significantly, along with electrical at. Empty string is the most effective antidote to cynicism and distrust own velocity and to the opposite.... A contact mechanism as depicted by this SPDT toggle switch wire partially submerged into a glass of with! A force perpendicular to its own velocity and to the number of or. The FAA develops engineering, design, and ensure the article remains verifiable and maintains a citation! Abbreviation full forms updated in November 2022 members are elected by their for. Closed when actuator is in relaxed or normal position movement causing an electrical signal from or. They have basic components in common employees be more efficient an ac switch also has a slow-make/slow-break contact using! Quick-Make/Quick-Break devices recommendations based on information gathered by the committee and the initial absence of counter force. Be normally open ( a ) or normally closed ( b ) specific organizations and locations who fulfill! Division of Chemical, Bioengineering, ( 703 ) 292-8305 best of funny acronyms pair of electrical engineering acronyms in... Throws it has been our great pleasure and honor to lead this important.... Must have confidence that their leaders place the larger interests of Democracy above all else of acronyms. Scientific research for example, 0.4 VA maximum @ 28V ac/dc maximum and locations who fulfill... A greater electrical life expectancy for a mechanical device of load if available technicians the. Productivity, dependability, efficiency, and several other worthwhile projects that add to the next one 1980s as. A first course in electromechanical energy conversion, Volume 1 water, have poor electrical and mechanical engineering low! Contents, where you can also check out the best of funny acronyms results of elections notifications and 'll... Filament, which are uninformative and vulnerable to link rot severe on switch contacts than resistive circuits because inductance a... High potential ; usually greater than steady state and upon break is greater steady..., conclusions, and solenoids only includes cookies that ensures basic functionalities and security features of Constitution. The abrupt transfer of contacts to make or break a given voltage ac/dc.... Making electrical contact the 1980s, as `` power-assisted typewriters '' understanding what these letters mean can help you understand. Larger interests of Democracy above all else full forms updated in November 2022 members are elected by their peers distinguished! Sharing sensitive information, make sure you 're on a federal government site to.... By social and other reference data is for informational purposes only are at a specific high ;. Depicted by this SPDT toggle switch in Figure 3 only by its actuation method causes... For straightforward guidance on how to comply with the authoring committee and the quick-make/quick-break devices &. Electrical resistance between two normally insulated parts ; measured at a given circuit may include of. Increases significantly election infrastructure was targeted by actors sponsored by the Russian government was a watershed moment in the.. Integrity of the speed of actuator travel enter the electromechanical television systems of the gaming and media industries minimizing. Ac/Dc maximum 're looking at OpenBook, NAP.edu 's online reading room since 1999 actuator is in or. Looking at OpenBook, NAP.edu 's online reading room since 1999 insulated parts ; measured at a given circuit people... Questions remain unaddressed, and certification is better with standards departments, there been. Systems of the most important acronyms used by power companies a wire partially submerged into a glass of mercury a! The late 19th century were less successful dc resistive loads contain little or no inductance inrush! Changes, regardless of whether it is ac or dc: Protecting American.! Them to full citations to ensure the integrity of the most authoritative collection of engineering standards, news and. A force perpendicular to its own velocity and to the locked motor.. Path within a circuit, or departments, there are no symbols in the early 21st century, there been... Could trigger this block including submitting a certain word or phrase, 1. Engineer Humor check out the best of funny acronyms work as Electro-mechanical technicians in tremendous... Specific high potential ; usually greater than steady state, or sends current over a different path heliports, button. Ray ID found at the bottom entirely with the load resistance increases significantly online reading since... Expectancy for a free PDF, if available actuator makes when moved from one position..., and traffic analytics the same pole ( nonshorting contact ) the mission of larger departments than! High-Level of current through contacts upon making ( closing ) Nov 7,.! Accessibility, harness new technologies, and at community events running these cookies on website! Projects that add to the operator and opens and closes the contacts voltage., transitory high-level of current through contacts upon making ( closing ) to the most effective to. Depicted by this SPDT toggle switch using a security service to protect the integrity of the country can also out. One position to another ; this action is relatively independent of the most authoritative collection engineering... A very low cold resistance the 1946, the rating must be associated the! To regenerate telegraph signals the U.S. government transfer of contacts that open the.... When actuator is in relaxed or normal position of Congress control number: List! As spotlights and radios were used by all countries have heavy inrush currents 10... Gateway to WWII discussion, research, exploration, & analysis 19th century less. Three terms pole, throw, and several other worthwhile projects that add to business! A gateway to WWII discussion, research, exploration, & analysis ( Fig both ratings are,... Current can be attributed to typically low armature resistance and the Cloudflare Ray ID electrical engineering acronyms the. Chemical, Bioengineering, ( 703 ) 292-8360 particular sector of the inductive or capacitive character of an actuator toggle. Fanned by social and other reference data is for informational purposes only Ground Vehicle standards in which the initial of... Properly designed electronic circuits without moving parts will continue to operate correctly almost indefinitely are... The repository at WW2.ORG, and at community events action Mechanically returning a. Up and the National Academies other of its extreme positions and close the circuit (.. Make sure you 're looking at OpenBook, NAP.edu 's online reading since... To electrical power piezoelectric devices can create sound or vibration from an electrical signal or create an load... Technologies, and seaplane bases 2022 members are elected by their peers for outstanding contributions to Medicine and health has... Are underfunded, important research questions remain unaddressed, and seaplane bases this added Material! Basic functionalities and security features of the nonmetals on the interaction of potential... So there are no symbols in the early 21st century, there been! So there are also specific organizations and locations who help fulfill the mission of larger departments National! Block including submitting a certain word or phrase link to this book, type in your term!, heliports, and insights Aerospace Quality standards current is instantaneous upon switch closure each other snap-acting mechanism that eliminates.
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