Slot-effect electrometers with monopolar electrets
- 1 November 1982
- journal article
- conference paper
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 53 (11) , 1746-1748
- https://doi.org/10.1063/1.1136890
Abstract
Slot‐effect electrometers with monopolar electrets as active elements are, in several aspects, superior to similar electrometers with bipolar electrets. In particular, the sensitivity of electrometers with monopolar electrets does not depend on the electret thickness and on the electret–electrode gap. Therefore, monopolar foil electrets can be used in such meters, and the electrometers can be constructed with less precision than when bipolar electrets are used. Two prototype electrometers are described: one with a disk‐shaped electret, the other with a cylindrical electret. The sensitivity of the former is 1000 V or 10−7 C per full‐scale deflection, that of the latter is 100 V or 10−9 C per full‐scale deflection.Keywords
This publication has 1 reference indexed in Scilit:
- Electret transducers: a reviewThe Journal of the Acoustical Society of America, 1973