piezoelectric element

piezoelectric element

[pē¦ā·zō·ə′lek·trik ′el·ə·mənt]
(electronics)
A piezoelectric crystal used in an electric circuit, for example, as a transducer to convert mechanical or acoustical signals to electric signals, or to control the frequency of a crystal oscillator.
References in periodicals archive ?
The proximity to the source of the pulsed pressure, the need for galvanic isolation of the sensor piezoelectric element and the circuit of the electrical circuit through which a pulsed current reaches tens of kA, the presence of a rigid reflecting wall of the chamber on which the sensor is to be mounted increases the level of its requirements, making it impossible to use most available pressure sensors, including, hydrophones of the company <<Bruel & Kjoer>>.
Ultrasonic transducers based on piezoelectric materials are normally based on the excitation of geometrical resonances of the piezoelectric element.
A piezoelectric element tailored for VCCT was used to study the crack of piezoelectric materials.
Tran-Cong, "A smoothed four-node piezoelectric element for analysis of two-dimensional smart structures," Computer Modeling in Engineering and Sciences, vol.
The core of this microphone is a piezoelectric element impacted with sound waves (directly or through a membrane).
A sinusoidal electronic input in the radio frequency (RF) range creates a standing sound wave, which drives piezoelectric element vibrations.
The Zigbee PRO Green Power extension supports light switches that transmit a command using only the energy developed by flipping the switch--it's recovered by a piezoelectric element.
Instrument electrode "Tweezer", made of rustfree sheet plate with screws to fix the piezoelectric element, is attached to a ceramic back-plate.
The larger signal amplitude than that of disk samples is due to the difference in the effective volume of piezoelectric element and the higher voltage sensitivity of the multilayer actuator.
Application of a fourth piezoelectric element under the big toe, where many mechanoreceptors are located, and an individually controllable amplitude of each piezoelectric element may contribute to improvement of the effects of the vibrating insoles [19].
Pressure applied to the piezoelectric element changes the resistance, thus creating a change in voltage.
In addition the pressure unit may contain a piezoelectric element unit to pressurise perfume stored in the perfume chamber, while a heater may be included to heat the perfume stored.