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A microphone designed to pick up mechanical vibrations directly and convert them into corresponding electric currents or voltages.



Related Terms

MOTOR ELEMENT

[ENG ACOUS] That portion of an electroacoustic receiver which receives energy from the electric system and converts it into mechanical energy.

PIEZOELECTRIC ELEMENT

A piezoelectric crystal used in an electric circuit, for example, as a transducer to convert mechanical or acoustical piezoelectric element piezoelectric gage signals to electric signals, or to control the frequency of a crystal oscillator.

ELECTROSCOPE

An instrument for detecting an electric charge by means of the mechanical forces exerted between electrically charged bodies.

HYDROELECTRIC GENERATOR

  1. An electric rotating machine that transforms mechanical power from a hydraulic turbine or water wheel.

PICKOFF

  1. A device used to convert mechanical motion into a proportional electric signal. 2. A mechanical device for automatic removal of the finished part from a press die.

ELECTROSTATIC LOUDSPEAKER

A loudspeaker in which the mechanical forces are produced by the action of electrostatic fields; in one type the fields are produced between a thin charges at rest, their electric fields, and potentials.

PIEZOELECTRIC TRANSDUCER

A piezoelectric crystal used as a transducer, either to convert mechanical or acoustical signals to electric signals, as in a microphone, or vice versa, as in ultrasonic metal inspection.

HARD-WIRE

To connect electric components with solid, metallic wires as opposed to radio links and the like.

MECHANICAL PRESS

A press whose slide is operated by mechanical means.

MAGNETOSTRICTIVE LOUDSPEAKER

[ENG ACOUS] Loudspeaker in which the mechanical forces result from the deformation of a material having magnetostrictive properties.

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