FIELD: instrument making.
SUBSTANCE: sensitive element for remote measurement consists of piezoelectric board on the surface of which at east one interdigital transducer and at least two reflecting structures are formed. Parameters of reflecting structures in compliance with parameters of sounding signal consisting of sequence of pulses provide for each reflecting structure the maximum reflection coefficient for one of pulses and maximum passage coefficient for the rest pulses.
EFFECT: owing to interference of reflected waves the pulse power of output signal of sensitive element is increased, which allows increasing the working range of sensitive element for remote measurement.
2 dwg
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