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{{short description|Accuracy in electrical measurement}} In electrical engineering '''class of accuracy''' is a figure which represents the error ...

...is superimposed on the original signal, and can be detected with suitable equipment. {{Electrical and electronic measuring equipment}} ...

...Alternating current|a.c.]] It can be designed to work in terms of either [[Electrical impedance|impedance]] or [[admittance]]. It can be used on resistors, capac ...tish company [[Standard Telephones and Cables]], which did not manufacture test instruments. TRA bridges have since been made by many specialist manufactur ...

...979 energy crisis|oil crisis]] and the worldwide need for more power, more electrical power, and consequently more [[power station]]s have raised [[energy conser In 1998 the European Committee of Manufacturers of Electrical Machines and Power systems (CEMEP) issued a voluntary agreement of motor ma ...

...rves as a measure of the accuracy of the impedance match to the item under test. This is especially important for transmitting antennas and their feed lin ...ut [[waveguide]] implementations are also used, with a movable insulated [[Test probe#Near-field probe|probe]] inserted into a longitudinal slot cut into t ...

{{Short description|Circuit that produces electrical noise}} ...[[electrical noise]] (i.e., a random signal). Noise generators are used to test signals for measuring [[noise figure]], frequency response, and other param ...

{{short description|Temperature range in which the equipment is expected to function reliably}} ...lowable [[temperature]] range of the local ambient environment at which an electrical or mechanical device operates. The device will operate effectively within a ...

...urge immunity in electrical or electronic equipment. IEC 61000-4-5 defines test set-up, procedures, and classification levels. ...uently used surge waveform. Although this standard is designed for testing equipment as a whole at system level, not for individual protection devices, in pract ...

{{TopicTOC-Electrical engineering}}{{selfref|Most of the terms listed in Wikipedia glossaries are ...articular. For more definitions in electric engineering, see [[Glossary of electrical and electronics engineering]]. For terms related to engineering in general, ...

...year long deployment at depths of up to 5000 m. Both laboratory and field test results show that the VMCM is capable of making accurate measurements of ho ==Equipment== ...

...al at a given frequency from other signals, in equipment such as [[radar]] equipment, [[microwave relay]] stations, satellite communications, and [[microwave ov ...e, ''R_s'' is simply determined by the empirically measured bulk electrical conductivity ''&sigma;'' see Ramo et al pp.288-289 <ref name="Ramo">[[Simon ...

...tion they have made a water lubricated engine pass this 200-hour endurance test. ...921147.htm}}</ref> The system was described as providing up to 10&nbsp;kW electrical output using a WHE-25 model engine and "will convert over 500,000 BTUs of e ...

===Comparison of electrical parameters of niobium and tantalum capacitor types=== ...ant parameters for the use of electrolytic capacitors in modern electronic equipment. The lower the ESR the higher the ripple current per volume, thus the bette ...

An example can be a pipe entirely covered by an electrical heating pad with the flow being introduced after a uniform heat flux from t ...nt 2016 SI Edition: Heating, Ventilating, and Air-Conditioning Systems and Equipment|last=Ashrae|date=2016-01-01|publisher=Amer Society of Heating|isbn=97819392 ...

[[File:ECTsim modeling.png|thumb|3D model of electrical tomography sensor with objects inside]] ...st1=W.|last2=Fan|first2=L.-S.|date=2003|title=Development of 3-dimensional electrical capacitance tomography based on neural network multi-criterion optimization ...

| title = Wireless Transmission of Electrical Power Overview of Recent Research & Development | journal = International Journal of Computer and Electrical Engineering ...

...nd system performance and reduce decision risk during design and after the equipment is fielded. This approach models the root causes of failure such as [[Fatig ...n algorithms that describe how physical, chemical, mechanical, thermal, or electrical mechanisms evolve over time and eventually induce failure. ...

...tric]] sample stage. Right: [[electron micrograph]] of a SQUID probe and a test image of Nb/Au strips recorded with it.<ref>{{cite journal|doi=10.1038/srep where ''R'' is the [[Electrical resistance|resistance]] between the electrodes, ''I'' is the [[Electric cur ...

{{short description|Electrical capacitor with an insulating plastic film as the dielectric}} ...rically called '''film caps''' as well as '''power film capacitors''', are electrical [[capacitor]]s with an insulating [[plastic film]] as the [[dielectric]], s ...

...ng plant. The relays are in round glass cases. The rectangular devices are test connection blocks, used for testing and isolation of instrument transformer In [[electrical engineering]], a '''protective relay''' is a [[relay]] device designed to t ...