Piezo-electric acceleration sensor

Details Piezo-electric acceleration sensor Piezo-electric acceleration sensor

1988-10-13

1990-05-08

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310800, 73516R, 73517R, H01L 4108

Patent

active

049241311

ABSTRACT:
A piezo-electric acceleration sensor, including: a piezo-electric polymer membrane element having an element through-hole; a diaphragm having a diaphragm through-hole and attached to the piezo-electric membrane element so that the diaphragm hole is concentric to the element through-hole to form a laminate with a laminate through-hole; and a fixing mechanism, having a sensing hole, for fixing the laminate in a stretched manner, and wherein: the laminate through-hole has about 2.25 to about 80% of the area of the sensing hole; and the diaphragm and the piezo-electric element meet the equation:

REFERENCES:
patent: 3858065 (1974-12-01), Epstein
patent: 4048526 (1977-09-01), Taylor
patent: 4051395 (1977-09-01), Taylor
patent: 4315433 (1982-02-01), Edelman et al.
patent: 4413202 (1983-11-01), Krempl et al.
patent: 4653036 (1987-03-01), Harris et al.
patent: 4658650 (1987-04-01), Yorinaga et al.
patent: 4660410 (1987-04-01), Asano et al.
patent: 4734611 (1988-03-01), Granz
patent: 4782469 (1988-11-01), Granz et al.

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