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单词 pulse generator
释义

pulse generator


Thesaurus
Noun1.pulse generator - a generator of single or multiple voltage pulses; usually adjustable for pulse rategenerator - an electronic device for producing a signal voltagepinger - a pulse generator used for echo sounding in sonarmicrowave radar, radar, radio detection and ranging, radiolocation - measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objectsasdic, echo sounder, sonar - a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee"

pulse generator


pulse generator

[′pəls ‚jen·ə‚rād·ər] (electricity) impulse generator (electronics) A generator that produces repetitive pulses or signal-initiated pulses.

Pulse generator

An electronic circuit capable of producing a waveform that rises abruptly, maintains a relatively flat top for an extremely short interval, and then rapidly falls to zero. A relaxation oscillator, such as a multivibrator, may be adjusted to generate a rectangular waveform having an extremely short duration, and as such it is referred to as a pulse generator. However, there is a class of circuits whose exclusive function is generating short-duration, rectangular waveforms. These circuits are usually specifically identified as pulse generators. An example of such a pulse generator is the triggered blocking oscillator, which is a single relaxation oscillator having transformer-coupled feedback from output to input.

Pulse generators sometimes include, but are usually distinguished from, trigger circuits. Trigger circuits generate a short-duration, fast-rising waveform for initiating or triggering an event or a series of events in other circuits. In the pulse generator, the pulse duration and shape are of equal importance to the rise and fall times. See Trigger circuit

The term pulse generator is often applied not only to an electronic circuit generating prescribed pulse sequences but to an electronic instrument designed to generate sequences of pulses with variable delays, pulse widths, and pulse train combinations, programmable in a predetermined manner, often microprocessor-controlled.

A network, formed in such a way as to simulate the delay characteristics of a lossless transmission line, and appropriate switching elements to control the duration of a pulse form the basis for a variety of types of pulse generators. Some delay-line-controlled pulse generators are capable of generating pulses containing considerable amounts of power for such applications as modulators in radar transmitters. See Wave-shaping circuits

pulse generator


generator

 [jen´ĕ-ra″tor] 1. something that produces or causes to exist.2. a machine that converts mechanical to electrical energy.pulse generator the power source for an pacemaker" >artificial pacemaker, usually powered by a long-lasting lithium battery and a microprocessor chip with appropriate electronic components to regulate the output of the battery; it supplies impulses to the implanted electrodes, either at a fixed rate or in a programmed pattern.

pulse gen·er·a·tor

a device that produces an electrical discharge with a regular or rhythmic waveform in which the electromotive force varies in a specific pattern in relation to time; for example, in an electronic pacemaker, it produces an electric discharge at regular intervals, and these intervals may be modified by a sensory circuit that can reset the time-base for subsequent discharge on the basis of other electrical activity, such as that produced by spontaneous cardiac beating.

pulse generator

Pacemaker Cardiac pacing The part of the pacing system that produces periodic electrical pulse and contains the power supply and electronic circuit. See Pacemaker.

pulse gen·er·a·tor

(pŭls jen'ĕr-ā-tŏr) A device that produces an electric discharge with a regular or rhythmic wave form in which the electromotive force varies in a specific pattern in relation to time; e.g., in an electronic pacemaker, it produces an electric discharge at regular intervals, and these intervals may be modified by a sensory circuit that can reset the time-base for subsequent discharge on the basis of other electrical activity, such as that produced by spontaneous cardiac beating.

pulse generator


Related to pulse generator: Signal generator, Function generator
  • noun

Words related to pulse generator

noun a generator of single or multiple voltage pulses

Related Words

  • generator
  • pinger
  • microwave radar
  • radar
  • radio detection and ranging
  • radiolocation
  • asdic
  • echo sounder
  • sonar
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更新时间:2024/12/23 17:46:44