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Measurement of Teflon Membrane Characteristics Used in Electret Microphones

机译:驻极体传声器中特氟龙膜特性的测量

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摘要

This paper present the results of laboratory tests of electrical, thermal and mechanical characteristics for elastic membranes made from Teflon varieties, such as: per-fluoro-alkoxy (PFA) and fluoro ethylene propylene-(FEP), these membranes being used in construction of high stability microphones. Main parameters studied are acoustic sensitivity, relative electrical permittivity, volume resistance, density and rugosity. All these quantities are studied related with temperature and relative humidity of electrets working environment and with sound waves that hit membrane surface.
机译:本文介绍了由特氟龙(Teflon)品种制成的弹性膜(例如:全氟烷氧基(PFA)和氟乙烯丙烯-(FEP))的电,热和机械特性的实验室测试结果,这些膜用于制造高稳定性麦克风。研究的主要参数是声学灵敏度,相对介电常数,体积电阻,密度和皱纹度。研究了所有这些量与驻极体工作环境的温度和相对湿度以及撞击膜表面的声波有关。

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