PIEZOELECTRIC ACCELEROMETER Russian patent published in 1996 - IPC

FIELD: measurement technology. SUBSTANCE: at presence of acceleration, sensitive element secured axially on base bends. Each layer of two-layer sensitive element bends relative to plane containing internal electrodes 6 which consist of odd number of separate sectors 6 which are not galvanically interconnected; their contact tracks are brought out to end surface of sensitive element. As a result, charges arise on external electrodes 10 and 11 which are congruent to internal electrodes due to alternating polarization of zones of sensitive element between external and internal electrodes. Output signal is taken off contact tracks brought out to side surface of sensitive element; first electrodes on outer surfaces of sensitive element are brought out by contact tracks and subsequent electrodes are connected in pairs by means of connectors 12. EFFECT: enhanced sensitivity of accelerometer. 5 dwg