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A solid dielectric that exhibits persistent dielectric polarization.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(General Physics) a permanently polarized dielectric material; its electric field is similar to the magnetic field of a permanent magnet
[C20: from electr(icity + magn)et]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
The ROG Theta Electret, on the other hand, is an analogue pair with an impedance of 32 ohms and silver-plated copper cables.
Selectable parameters include microphone preamplifier game, electret power on/off, stereo line input gain, headphone monitoring, pushbutton action, and overall system operation.
Kimberly-Clark offers nonwoven air filtration media, including both high-loft and low-loft nonwoven filter media with an electret charge.
So far, the observed hysteresis in the dynamic I-V curves can be attributed to the electret effect [23,24].
Nazmieva, "Effect of aluminum oxide coating on structural, barrier and electret properties of polyethylene terephthalate films," IEEE Transactions on Dielectrics and Electrical Insulation, vol.
Representative acoustic sensor technologies complying with those requirements were evaluated: electret condenser microphone (KEEG1542, Knowles), MEMS microphone with analog output (ADMP404, Analog Devices; ICS40310, Invensense), and MEMS microphone with digital output (ADM441, Analog Devices).
The study included a commonly used F7-class glass-fiber filter, HEPA-class filters, an electret filter and an electrostatic precipitator.
In addition to the microcontroller, the platform contained a circuit board that received input from an electret microphone (Model WM-63GNT, Panasonic Corp., Newark, New Jersey, USA) clamped near the base of the tree.
The DGO9767CD electret microphone is applied to measure the noise signals that the sensitivity is 50 mV/Pa, and the frequency response range is 20 Hz-20 kHz.
The boom for the electret microphone can be rotated 360 degrees and placed on either side of the headset.