- An
electret (formed as a
portmanteau of electr- from "electricity" and -et from "magnet") is a
dielectric material that has a quasi-permanent electrical...
-
electret microphone is a
microphone whose diaphragm forms a
capacitor (historically-termed a condenser) that
incorporates an
electret. The
electret's...
-
production and
design of
microphones and
techniques for
creating polymer foil
electrets. West was born on
February 10, 1931, in Farmville,
Prince Edward County...
- case of fault. An
electret driver functions along the same
electromechanical means as an
electrostatic driver. However, the
electret driver has a permanent...
-
condenser microphone is
replaced by a
permanent charge in an
electret material. An
electret is a
ferroelectric material that has been
permanently electrically...
-
Electret Scientific, Star City, 2000.
Electricity and Magnetism: An
Introduction to the
Theory of
Electric and
Magnetic Fields, 2nd ed.,
Electret Scientific...
- can also be stand-alone devices. The
integrated preamplifier in a foil
electret microphone. The
first stages of an
instrument amplifier,
which is then...
- cathode.
Initial velocity bias is used only for
small input signal voltages.
Electret microphone elements typically include a
junction field-effect transistor...
- and crystals; however, soft
pyroelectricity can be
achieved by
using electrets.
Pyroelectricity is
measured as the
change in net
polarization (a vector)...
- some
typically small distance. (A
permanent electric dipole is
called an
electret.) A
magnetic dipole is the
closed circulation of an
electric current system...
