FIELD: measuring equipment. SUBSTANCE: liquidometer has ultrasonic converter 1, receiver 4, transmitter 5, generator 6, controlled delay circuit 7, AND element 8, control unit 9, unit 10 for shaping frequency, counter 11, indicator 12, and comparator 13. EFFECT: improved accuracy of measurements. 2 cl, 2 dwg
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Authors
Dates
1995-06-09—Published
1993-03-03—Filed