| 单词 | electrical device |
| 释义 | electrical device (once / 102777 pages) n WORD FAMILY electrical device: electrical devices USAGE EXAMPLESI buy a $300 electrical device that I hook over my ears and connect to my forehead via an electrode for 20 minutes each day. The Guardian(Nov 17, 2016) “Some of our most popular items are topical pain therapies,” he says, adding that electrical devices for pain relief are also popular. Seattle Times(Nov 02, 2016) When working outside in the fall and winter, use only weatherproof electrical devices. US News(Oct 08, 2016) n a device that produces or is powered by electricity Hypo|Hyper aerial, antenna, transmitting aerial an electrical device that sends or receives radio or television signals attenuatoran electrical device for attenuating the strength of an electrical signal ballast, light ballastan electrical device for starting and regulating fluorescent and discharge lamps battery, electric batterya device that produces electricity; may have several primary or secondary cells arranged in parallel or series bimetallic stripa strip consisting of two metals that bends with a rise in temperature brushconducts current between rotating and stationary parts of a generator or motor capacitance, capacitor, condenser, electrical condenseran electrical device characterized by its capacity to store an electric charge cell, electric cella device that delivers an electric current as the result of a chemical reaction circuit, electric circuit, electrical circuitan electrical device that provides a path for electrical current to flow board, control board, control panel, instrument panel, panelelectrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices distributer, distributor, electrical distributorelectrical device that distributes voltage to the spark plugs of a gasoline engine in the order of the firing sequence electrographelectrical device used for etching by electrolytic means Van de Graaff generator, Wimshurst machine, electrostatic generator, electrostatic machineelectrical device that produces a high voltage by building up a charge of static electricity filteran electrical device that alters the frequency spectrum of signals passing through it flasheran electrical device that automatically turns a lamp on and off (as for an advertising display) electrical fuse, fuse, safety fusean electrical device that can interrupt the flow of electrical current when it is overloaded inductance, inductoran electrical device (typically a conducting coil) that introduces inductance into a circuit jackan electrical device consisting of a connector socket designed for the insertion of a plug loadelectrical device to which electrical power is delivered male plug, plugan electrical device with two or three pins that is inserted in a socket to make an electrical connection Cottrell precipitator, electrostatic precipitator, precipitatorremoves dust particles from gases by electrostatic precipitation reactoran electrical device used to introduce reactance into a circuit rectifierelectrical device that transforms alternating into direct current electrical relay, relayelectrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit resistance, resistoran electrical device that resists the flow of electrical current security, security measure, security systeman electrical device that sets off an alarm when someone tries to break in Segway, Segway HT, Segway Human Transporter(trademark) a self-balancing personal transportation device with two wheels; can operate in any level pedestrian environment solar array, solar battery, solar panelelectrical device consisting of a large array of connected solar cells spark arresterelectrical device to reduce sparking when electrical contacts are opened or closed plug, spark plug, sparking plugelectrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark suppresser, suppressoran electrical device for suppressing unwanted currents transduceran electrical device that converts one form of energy into another transformeran electrical device by which alternating current of one voltage is changed to another voltage transponderelectrical device designed to receive a specific signal and automatically transmit a specific reply zapperan electrical device that can injure or kill by means of electric currents A batterythe battery used to heat the filaments of a vacuum tube ballast, ballast resistor, barrettera resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations) B batterybattery for supplying a constant positive voltage to the plate of a vacuum tube bridge, bridge circuita circuit consisting of two branches (4 arms arranged in a diamond configuration) across which a meter is connected bridged-Ta circuit consisting of a T-network with an additional shunt bridging the two series circuits bypass capacitor, bypass condensera capacitor that provides low impedance over certain (high) frequencies cartridge fusea fuse cased in a tube C batterybattery used to maintain the grid potential in a vacuum tube breaker, circuit breakera device that trips like a switch and opens the circuit when overloaded closed circuit, loopa complete electrical circuit around which current flows or a signal circulates coilreactor consisting of a spiral of insulated wire that introduces inductance into a circuit coila transformer that supplies high voltage to spark plugs in a gasoline engine computer circuita circuit that is part of a computer dashboard, fasciainstrument panel on an automobile or airplane containing dials and controls delay linea circuit designed to introduce a calculated delay into the transmission of a signal demodulator, detectorrectifier that extracts modulation from a radio carrier wave dipole, dipole antennaan aerial half a wavelength long consisting of two rods connected to a transmission line at the center directional antennaan antenna that transmits or receives signals only in a narrow angle electro-acoustic transducera transducer that converts electrical to acoustic energy or vice versa electrolytic, electrolytic capacitor, electrolytic condensera fixed capacitor consisting of two electrodes separated by an electrolyte electrolytic cella cell containing an electrolyte in which an applied voltage causes a reaction to occur that would not occur otherwise (such as the breakdown of water into hydrogen and oxygen) electrophorusa simple electrostatic generator that generates repeated charges of static electricity feedback circuit, feedback loopa circuit that feeds back some of the output to the input of a system flip-flopan electronic circuit that can assume either of two stable states fuel cellcell that produces electricity by oxidation of fuel (hydrogen and oxygen or zinc and air); often used in electric cars full-wave rectifierrectifier that converts the negative half wave of an alternating current into a positive half wave high-pass filtera filter that passes frequencies above a certain value and attenuates frequencies below that value Leiden jar, Leyden jaran electrostatic capacitor of historical interest clipper, limiter(electronics) a nonlinear electronic circuit whose output is limited in amplitude; used to limit the instantaneous amplitude of a waveform (to clip off the peaks of a waveform) data link, linkan interconnecting circuit between two or more locations for the purpose of transmitting and receiving data low-pass filtera filter that passes frequencies below a certain value and attenuates frequencies above that value mosaictransducer formed by the light-sensitive surface on a television camera tube nondirectional antenna, omnidirectional antennaan antenna that sends or receives signals equally in all directions open circuitan incomplete electrical circuit in which no current flows electric eye, magic eye, photocell, photoconductive cell, photoelectric cella transducer used to detect and measure light and other radiations plug fusea fuse with a thread that screws into a socket potential divider, voltage dividerresistors connected in series across a voltage source; used to obtain a desired fraction of the voltage pulse timing circuita circuit that times pulses resonant circuit, resonatoran electrical circuit that combines capacitance and inductance in such a way that a periodic electric oscillation will reach maximum amplitude rheostat, variable resistorresistor for regulating current series circuita circuit having its parts connected serially photovoltaic cell, solar cella cell that converts solar energy into electrical energy squelch, squelch circuit, squelcheran electric circuit that cuts off a receiver when the signal becomes weaker than the noise step-down transformera transformer that reduces voltage step-up transformera transformer that increases voltage secondary cell, storage cella cell that can be recharged lightning arrester, spike arrester, spike suppressor, surge protector, surge suppressorelectrical device inserted in a power line to protect equipment from sudden fluctuations in current tank circuitan oscillatory circuit phone jack, telephone jacka jack for plugging in a telephone phone plug, telephone pluga plug for connecting a telephone Tesla coila step-up transformer with an air core; used to produce high voltages at high frequencies T-networka circuit formed by two equal series circuits with a shunt between them trimmer, trimming capacitorcapacitor having variable capacitance; used for making fine adjustments voltage regulatora transformer whose voltage ratio of transformation can be adjusted galvanic battery, voltaic batterybattery consisting of a number of voltaic cells arranged in series or parallel galvanic cell, primary cell, voltaic cellan electric cell that generates an electromotive force by an irreversible conversion of chemical to electrical energy; cannot be recharged galvanic pile, pile, voltaic pilebattery consisting of voltaic cells arranged in series; the earliest electric battery devised by Volta wiringa circuit of wires for the distribution of electricity device an instrumentality invented for a particular purpose |
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