PIEZOELECTRIC MEASURING TRANSDUCER Russian patent published in 2020 - IPC G01P15/09 

FIELD: monitoring and measuring equipment.

SUBSTANCE: invention relates to instrumentation, namely to devices for electrical measurements of non-electrical values, and can be used to measure vibration accelerations of industrial facilities, as well as for vibration analysis and vibration monitoring of industrial equipment in conditions of high industrial pickup and interference. Piezoelectric measuring transducer comprises piezosensor and amplifier consisting of two parts, first of which is arranged in converter housing and includes amplifying element, common wire and signal wire, and the second part of the amplifier is located outside the housing and includes a current source, the cathode of which is connected to the signal wire and to the recorder, wherein the anode of the current source is connected to the power supply. Amplifier used is an operational amplifier, additionally there is a stable voltage source, four resistors and a capacitor connected according to the device diagram in fig. 1.

EFFECT: technical result is creation of piezoelectric measuring transducer with fixed transmission coefficient and high temperature stability of output parameters.

1 cl, 1 dwg