Glossary of electrical and electronics engineering: Difference between revisions

Revision as of 15:55, 22 September 2020

Revision as of 11:53, 31 October 2020

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{{defn|A circuit that produces a number proportional to the magnitude of a {{gli|voltage}} or {{gli|current}}.}}

{{term|[[anode]]}}

{{defn|The terminal of an electrochemical or electronic device through which conventional {{gli|current}} flows inward.}}

{{term|[[antenna (radio)|antenna]]}}

{{defn|A structure which converts between electromagnetic waves in space and currents in a conductor.}}

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{{defn|An electronic instrument that displays the wave shape of electrical signals on a cathode ray tube.}}

{{term|[[cathode ray tube]]}}

{{defn|A vacuum tube that relies on an electron beam{{Snd}} usually used to render images on a fluorescent screen such as in television sets.}}

{{term|[[cathode]]}}

{{defn|The terminal of an electrochemical or electronic device from which conventional current exits the device.}}

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{{defn|A British code breaking system used during World War II.}}

{{term|[[combined cycle]]}}

{{defn|A thermal power plant that improves efficiency with two different kinds of energy extraction from the combustion products gas stream, such as a gas turbine followed by a steam boiler.}}

{{term|[[communication system]]}}

{{defn|A system intended to convey information from one place to another with an expected degree of performance.}}

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{{defn|The ability of a generating station or grid to follow changes in load while maintaining {{gli|voltage}} and frequency within acceptable limits.}}

{{term|[[demodulation]]}}

{{defn|The process of recovery of information (sound, video, data) from a modulated carrier.}}

{{term|[[describing function]]}}

{{defn|A method for analyzing non-linear control systems.}}

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{{term|[[electrical contact]]}}

{{defn|A separable part of an electric device that carries current when touching another contact.}}

{{term|[[electrical discharge machining|electrical discharge machining]] (EDM)}}

{{defn|Shaping of a work place by small sparks.}}

{{term|[[electrical element]]}}

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{{term|[[inrush current]]}}

{{defn|The transient current that flows when first connecting a device to a power source.}}

{{term|[[Institute of Electrical and Electronics Engineers|Institute of Electrical and Electronics Engineers]] (IEEE)}}{{defn|The American-based society for electrotechnology.}}

{{term|[[Institution of Engineering and Technology]]}}

{{defn|The British society of electrical and electronics engineers.}}

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{{term|[[intelligent transportation system]]}}{{defn|The application of information technology to manage some aspects of a transportation system.}}

{{term|[[intermittent energy source]]}}{{defn|An energy source whose availability is not under human control; it may be sporadically available or available on some natural schedule not coincident with human demands; energy sources that are not dispatchable.}}

{{term|[[International Electrotechnical Commission|International Electrotechnical Commission]] (IEC)}}

{{defn|An international standards organization devoted to electrical standards; most countries are members.}}

{{term|[[International Organization for Standardization]]}}

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{{term|[[pantograph (rail)|pantograph]]}}{{defn|A linkage that supports the current collector of an electric locomotive.}}

{{term|[[paraformer]]}}{{defn|A device similar to a transformer that couples energy between two circuits by varying magnetic parameters.}}

{{term|[[parameter estimation]]}}{{defn|In estimation theory, the practice of assigning values to a process model so it accurately predicts the process's behavior.}}

{{term|[[Park transform]]}}{{defn|A mathematical technique useful in the analysis of three-phase systems.}}

{{term|[[partial discharge]]}}{{defn|Breakdown of insulating gas or solid material by an electric field, but without formation of an arc.}}

{{term|[[passivity (engineering)|passivity]]}}{{defn|Incapable of adding energy to a signal or process.}}

{{term|[[patch cables]]}}{{defn|Short cables with connectors, used to make connections between outlets of a patch panel or for temporary connections to a system under test.}}

{{term|[[peak demand]]}}{{defn|The maximum rate at which energy is consumed from an electrical grid; may be either an instantaneous measure or the maximum energy transferred in some interval such as 15 minutes.}}

{{term|[[Peltier–Seebeck effect]]}}{{defn|The thermoelectric effect, movement of heat due to electric current flow.}}

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{{term|[[pumped-storage hydroelectricity]]}}{{defn|A grid energy storage system that pumps water uphill for later use by a hydroelectric generator plant.}}

{{term|[[push switch]]}}{{defn|A device that closes or opens an electrical circuit when pushed.}}

{{term|[[push–pull converter]]}}{{defn|A converter with two sets of primary switching elements so that the transformer primary {{gli|voltage}} can be reversed on each cycle.}}

{{glossary end}}

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{{term|[[space vector modulation]]}}{{defn|A control strategy for variable frequency motor drives.}}

{{term|[[spark spread]]}}{{defn|The difference between the revenue from selling a unit of electricity and the cost of the fuel used to make it.}}

{{term|[[spark-gap transmitter]]}}{{defn|A former type of radio transmitter that generated radio frequency current by exciting resonance of a tuned system with an electric spark, used almost entirely for transmission of Morse code.}}

{{term|[[spectrum analyzer]]}}{{defn|An instrument that graphically displays the amplitude of signals in a narrow bandwidth across a frequency band.}}

{{term|[[speech processing]]}}{{defn|The techniques for improving the intelligibility of human speech in a communications system.}}