FIELD: measuring devices.
SUBSTANCE: device comprises two spaced transducers, two spaced measuring transducers, two measuring devices, four OR elements, two logic units, the unit of the shock wave speed determination, the unit of the shock wave arrival time forecast and two elements AND. The result is achieved due to shock wave speed measuring, forecast of its arrival time and transducers blocking for the period of shock wave passage.
EFFECT: increasing of interference protection of the device.
4 cl, 4 dwg
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