PIEZOELECTRIC TRANSDUCER OF SPATIAL VIBRATION AND CONTROL METHOD OF ITS OPERABILITY ON THE OPERATING OBJECT Russian patent published in 2016 - IPC G01P15/09 

FIELD: metrology.

SUBSTANCE: invention relates to metrology. Piezoelectric transducer comprises orthogonal system of four single-component electromechanical choppers. Axis of sensitivity of the fourth chopper passes through the centre of orthogonal coordinate system and is oriented relative to each of axes under specified angles, and it forms three noncoplanar and noncollinear spatial oblique-angled coordinate systems with axes. Axis of sensitivity of the fourth chopper is aligned with the plane passing through the vertical axis and a bisector of a angle between horizontal axes of the orthogonal coordinate system, and is oriented at an acute angle to vertical axis. Housing of the chopper comprises a connector and fasteners. Control of the chopper operability includes determining values of orthogonal and oblique-angled spatial vector of the object vibration projections, which lead to the orthogonal coordinate system. Then vibration vector modules are determined, they are summed up and the average value is calculated. Vibration deviation from the average value is measured, these deviations are compared with specified deviation, and the chopper operability is determined.

EFFECT: technical result is obtaining objective information on operation of the device.

2 cl, 4 dwg, 5 tbl