push-pull electret transducer

push-pull electret transducer

[′pu̇sh ¦pu̇l i′lek·trət tranz′dü·sər]
(electronics)
A type of transducer in which a foil electret is sandwiched between two electrodes and is specially treated or arranged so that the electrodes exert forces in opposite directions on the diaphragm, and the net force is a linear function of the applied voltage.