You searched for: “transducer
1. A device that converts energy from one form to another, as a cell that converts sunlight to electricity.
2. Any device by which variations in one physical quantity (e.g. pressure, brightness) are quantitatively converted into variations in another (e.g. voltage, position).
Word Entries containing the term: “transducer
electret transducer (s) (noun), electret transducers (pl)
A tool that is actuated by electric waves from one system and which supplies power in the form of electric waves to a second network.
electric transducer (s) (noun), electric transducers (pl)
Equipment from which all of the waves are electric or a two-part appliance that processes electrical signals: An electric transducer is a device that transforms one type of energy into another one; for example, a microphone, a photoelectric cell, or an automobile horn.
This entry is located in the following units: electro-, electr-, electri- (page 15) trans-, tran-, tra- (page 1)
electrical pressure transducer (s) (noun), electrical pressure transducers (pl)
An instrument part which determines a fluid pressure and produces an electrical, mechanical, or pneumatic signal related to the pressure.

Although pneumatic and mechanical transducers are commonly used, electrical measurement of pressure is often preferred because of a need for long-distance transmission, higher accuracy requirements, more favorable economics, or quicker responses.

Electrical pressure transducers may be classified depending on the operating principle as resistive transducers, strain gages, magnetic transducers, crystal transducers, capacitive transducers, or resonant transducers.

This entry is located in the following units: electro-, electr-, electri- (page 19) trans-, tran-, tra- (page 2)
electroacoustic transducer (s) (noun); electroacoustic transducers (pl)
A device that produces energy waves from electricity to sound or from sound to electricity: Examples of electroacoustic transducers include such devices as microphones, earphones, and loudspeakers.
electrokinetic transducer (s) (noun), electrokinetic transducers (pl)
An instrument that converts dynamic physical forces into electric signals.
electromechanical transducer (s) (noun), electromechanical transducers (pl)
1. An instrument that converts mechanical energy into electrical energy or a reverse process.
2. A transducer (electrical device that converts one form of energy into another) for receiving waves from an electric system and delivering waves to a mechanical system, or the reverse.
electrostatic transducer, capacitor transducer, condenser transducer
1. A transducer consisting of a set electrode and a movable electrode, charged electrostatically in opposite polarity.

The motion of the movable electrode changes the capacitance between the electrodes and so makes the applied voltage change in proportion to the amplitude of the electrode's motion.

2. A transducer which consists of a capacitor, at least one plate of which can be set into vibration.

Its operation depends on the interaction between its electric field and a change in its electrostatic capacity.

This entry is located in the following units: electro-, electr-, electri- (page 85) trans-, tran-, tra- (page 3)
electrostriction transducer, ceramic transducer
A transducer (any instrument; such as, a microphone or electric motor, that converts one form of energy into another) which depends on the production of an elastic strain in certain symmetric crystals when an electric field is applied, or, conversely, which produces a voltage when the crystal is deformed.
This entry is located in the following units: electro-, electr-, electri- (page 86) trans-, tran-, tra- (page 3)
piezoelectric transducer
A device that uses the interaction between an electric charge and the deformation of a piezoelectric crystal to convert mechanical or acoustical signals into electrical ones, especially such a device used in a microphone.
Word Entries at Get Words: “transducer
An instrument that converts the physical stimulus to be measured; such as, temperature, vibration, or pressure, into an electrical signal and therefor operates as the actual measuring instrument.

Transducers can take many forms and they can be self-generating or externally energized.

An example of the self-generating type is a vibration sensor based on the use of a piezoelectric material; that is, one that produces an electrical signal when it is mechanically deformed.

Many externally energized transducers operate by producing an electrical signal in response to mechanical deformation. Typical physical inputs producing such deformations are pressure, mechanical stress, and acceleration.

A simple mechanical transducer-sensing device is a strain gauge based on the change in electrical resistance of a wire or a semiconductor material under strain. Another externally energized transducer, called the variable-reluctance type, is one in which the magnetic circuit is broken by an air gap.

The mechanical movement to be measured is used to change this air gap and so it changes the reluctance, or opposition, to the production of a magnetic field in the circuit. The change in reluctance is then translated into an electrical signal.

—Compiled from information located at
Encyclopedia Britannica on line.
This entry is located in the following unit: Measurements and Mathematics Terms (page 9)