Title :
Sensitivity stability of electret transducers
Author :
Pshchelko, N.S. ; Tairov, V.N. ; Ozols, A.R.
Author_Institution :
Dept. Semicond. & Dielectr., Electrotech. Inst., Leningrad, USSR
Abstract :
Based on equations derived previously, the authors develop a method for determining the parameters of an electret transducer. With the approach described, it is possible to implement a nondestructive method for finding the parameters of an electret transducer. A formula for electret microphone sensitivity can then be used to predict the sensitivity variation versus variation parameters with time (i.e., by discharging an electret and simultaneous weakening of membrane tension)
Keywords :
electrets; microphones; transducers; electret; electret microphone sensitivity; electret transducers; nondestructive method; parameters; sensitivity variation; Biomembranes; Electrets; Electrodes; Electrostatics; Equations; Metallization; Pistons; Polymers; Stability; Transducers;
Conference_Titel :
Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)
Conference_Location :
Berlin
Print_ISBN :
0-7803-0112-9
DOI :
10.1109/ISE.1991.167339
