FIELD: measurement technology. SUBSTANCE: device has sweep generator, power amplifier, current resistor, synchronous detector, frequency response indicator, integrator, piezomodule value indicator, and integrator control unit. Power amplifier output is connected to common bus through series- connected piezoceramic cell under check and current resistor whose point of interconnection is connected to second input of synchronous detector. EFFECT: improved design. 5 dwg
Authors
Dates
1995-02-20—Published
1991-03-19—Filed