FIELD: instrumentation.
SUBSTANCE: invention relates to pressure transducers and can be used in dynamic pressure measurement jointly with piezoelectric transducers of dynamic pressure. Claimed instrument comprises piezo element 1 and metering unit 2. The latter consists of AC generator 3, wideband amplifier 4, bandwidth filter 5, rectifier 6, low-pass filter 7 and microcontroller 8. Piezo element 1 output is connected to AC generator output 3 connected to wideband amplifier 4. The latter is connected to bandwidth filter 5 and low-pass filter 7. Bandwidth filter 5 is connected via rectifier 6 with microcontroller 8 first input. Microcontroller second input is connected to low-pass filter 7.
EFFECT: accelerated response, higher accuracy.
1 dwg
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