METHOD OF MEASURING SURFACE DENSITY OF ELECTRET CHARGE

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to measurement technique and can be used u0434u043bu00a0 u0438u0437u043cu0435u0440u0435u043du0438u00a0 u0440u0430u0441u043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 u0437u0430u0440u00a0u0434u0430 surface density on the surface of the u044du043bu0435u043au0442u0440u0435u0442u0430. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - improved accuracy u0438u0437u043cu0435u0440u0435u043du0438u00a0 - u0434u043eu0441u0442u0438u0433u0430u0435u0442u0441u00a0 by u0438u0441u043au043bu044eu0447u0435u043du0438u00a0 of u0438u0437u043cu0435u0440u0435u043du0438u00a0 secondary u0440u0430u0441u0441u0442u043eu00a0u043du0438u00a0 between electrodes and u044du043bu0435u043au0442u0440u0435u0442u043eu043c and amplitude fluctuations in the electrodes.the u0434u043eu0441u0442u0438u0433u0430u0435u0442u0441u00a0 u043fu043eu0441u0442u0430u0432u043bu0435u043du043du0430u00a0, measuring electrode placed parallel to the electrode surface. u043fu0440u0438u0432u043eu0434u00a0u0442 measuring electrode in the harmonic u043au043eu043bu0435u0431u0430u043du0438u00a0 and the maximum value of generated voltage in the measuring circuit u0441u0443u0434u00a0u0442 on surface density of u0430u0440u00a0u0434u0430 u044du043bu0435u043au0442u0440u0435u0442u0430. 1 il.