PIEZOELECTRIC TRANSDUCER OF SPATIAL VIBRATION AND THE METHOD OF INCREASING ITS OPERATIONAL RELIABILITY Russian patent published in 2018 - IPC G01P15/09 

FIELD: measuring equipment.

SUBSTANCE: group of inventions relates to measurement equipment and can be used to restore the operational performance of the piezoelectric transducer of spatial vibration with a possible malfunctioning of one of its measuring channels. Device comprises a housing with a detachable contact terminal and fastening elements to the measurement object and a system of five identical single-component piezoelectric vibration transducers housed in the housing, sensitivity axes of three of which form an orthogonal coordinate system, and two control vibration transducers, the sensitivity axis of which pass through the center of the orthogonal system, are aligned with their planes passing through the vertical axis of sensitivity of the converter. In this case, both axes of sensitivity of the control vibration transducers pass through the third octant, are oriented with respect to the horizontal axes of sensitivity of the vibration transducers of the orthogonal system under known non-coincident angles, and with respect to the vertical axis are also at angles known and preferably identical and together with the orthogonal system form six noncoplanar and noncollinear spatial oblique three-component coordinate systems. Method assumes simultaneous measurement and storage of all values of the projections of the object's vibration vector acting on the sensitivity axis of all components, reduction of design values of projections using control channels in six oblique-angled coordinate systems to the values of their projections in the orthogonal system and according to the claimed algorithm determine the operability of the spatial vibration transducer, setting the measuring channel with a possible malfunction, and on the measured values of the other serviceable measuring channels restore the operational efficiency of the converter.

EFFECT: technical result consists in the possibility of restoring the further operability of the converter and continuing to obtain reliable information about the operational vibration state of the operating object.

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