Procedure for determination of parameters of a condesing structures with a movable capacitor plates
- Ph.D. associate professor Saint Petersburg State Mining Institute (Technical University)
Abstract
Procedure for definition of parameters of a condenser structure cap is considered. The procedure allows by means of one operation – volt – capacitance characteristic measuring – to define the whole complex of the major parameters of a cap – size of a working air gap, a membrane deflection, surface electret potential and a membrane tension. The expressions for capacitance of a condenser structure cap as a function of specified parameters are obtained. Analytical expression for capacitance of a cap depending on the specified parameters and measuring of its volt-capacitance characteristic allow to define these parameters by solving corresponding system of equations. The procedure considered in the present work is a not-destroying quality monitoring method.
References
- Ganenkov N.A. Electret Electromechanical Transducers / N.A.Ganenkov, N.S.Pshchelko / /Radio electronics in Saint Petersburg Electrotechnical Institute «LETI». Saint Petersburg, 1996. Issue 2. P.121-126.
- Ganenkov N.A. Theory and Calculation of Electromechanical Transducers on Active Dielectrics: The manual / N.A.Ganenkov, V.I.Zakrzhevsky, O.I.Koldunov, N.S.Pshchelko / Electrotechnical Institute «LETI». Saint-Petersburg, 1994. 43 p.
- Klimova N.V. Modification of Heat-resistant Photovarnishes for New Applications / N.V.Klimova, G.K.Lebedeva, L.I.Rudaja, T.A.Jurre, I.M.Sokolova, N.S.Pshchelko // The Petersburg magazine of electronics. Saint Petersburg, 2002. № 3. P.33-37.
- The patent of the Russian Federation № 2132116 H 04 R 29/00. Method of determining the quality of electret and electroacoustic converters and devices for its reducing to practice / F.I.Batalov, N.S.Pschelko, A.S.Yastrebov. Publ. 27.05.99. Bulletin No 17. Рart 2.
- Pshchelko N.S. Procedure For the Calculation of Electret Receiving Electroacoustic Transducers/ N.S.Pshchelko, V.N.Tairov // Sov. Phys. Acoust. 1988. Vol.34. № 4. P.706-710.
- Pshchelko N.S. Optimisation of Eltctret Microphones Parametres / N.S.Pshchelko, D.A.Kozodaev / /News of Electrotechnical Institute «LETI». St-Petersburg, 1997. Issue 504. P.87-92.
- Kozodaev D.A. Analysis of Electert Sub-Miniature Microphones / D.A.Kozodaev, N.S.Pshchelko, V.I.Zakrzhevskiy // Proc. ISE-10. Athens, 1999. P.973-978.
- Pshchelko N.S. Sensitivity Stability of Electret Transducers / N.S.Pshchelko, V.N.Tairov, A.R.Ozols // Proc. ISE-7. Berlin, 1991. P.935-940.
- Pshchelko N.S. C-V – Testing of Electeret Transducers / N.S.Pshchelko, I.M.Sokolova, V.I.Zakrzhevskiy // Proc. ISE-8. Paris, 1994. P.1028-1033.