Low frequency acoustical piezo-electric transducer

Details Low frequency acoustical piezo-electric transducer Low frequency acoustical piezo-electric transducer

1975-09-03

1977-06-21

Budd, Mark O.

Electrical generator or motor structure

Educational or construction units or kits

340 10, H01L 4104

Patent

active

040314189

ABSTRACT:
A piezo-electric transducer for low frequency acoustical waves comprising a stack of piezo-electric elements and alternating electrodes disposed between a front receiver plate and a counter mass. The countermass comprises a rigid annular block surrounding the stack, a rear plate engaging the rear of the stack and an elastic connection between the block and the rear plate.

REFERENCES:
patent: 3281770 (1966-10-01), Sims
patent: 3328751 (1967-06-01), Massa
patent: 3421139 (1969-01-01), Siebert
patent: 3686115 (1972-08-01), Farman et al.
patent: 3778758 (1973-12-01), Carson

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