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Information × Registration Number 0299U004278, 0198U000501 , R & D reports Title Adapting of the schemotechnical solutions of construction of the automated impedancemeter in view of new element base and extension of its functional capabilities popup.stage_title Head Lysenko Oleksandr Mykolajovych, Registration Date 17-05-2001 Organization Instrument-making faculty of National Technical University of Ukraine "Kyiv Polytechnic Institute" popup.description2 Object of designing - acoustic impedancemeter for objective research of a condition of audition of the person. The purpose of mining - creation of a means with amplate functional capabilities. Methods of mining and instrumentation - theory of electrical measurements, methods of a filtration, methods of experimental researches with usage of the device " a simulated ear " and complex 22C f. RFT. The pathes of construction are investigated and is justified election of frame of a measuring channel of impedancemeter, the sample of a means with amplate functional capabilities is built, which one will realise modes of examination by methods of tympanometry and reflexometry with measurement of temporary parameters of jerk. On frequencies 500, 1000, 2000, 4000 Hz is reached of a maximum level of listening 110 dB at a level of nonlinear distortions 3 %, measurement range - 0,2... 5,0 ml with error 0,1 ml, range of pressure variation of air - +200 ...-300 daPa. The domestic clones of mining miss. Field of applica tion - medicine. Product Description popup.authors popup.nrat_date 2020-04-02 Close