Planar wave transducer assembly

Details Planar wave transducer assembly Planar wave transducer assembly

1993-05-14

1994-08-30

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84192, 84723, 84DIG24, G01H 100, G01H 300

Patent

active

053429893

ABSTRACT:
A planar wave transducer assembly comprising a rigid, unitary structure formed by a pair of foot pads attached to a planar surface, each foot pad having an upstanding leg, and a span bar extending across the tops of the legs. A piezoelectric transducer element extends between the legs of the transducer assembly in spaced, parallel alignment with the span bar to convert wave motion in the planar surface into an electrical signal. That is, the movement of one leg towards the other in response to planar wave energy causes the one leg to flex or bend so as to apply a compressive force to the piezoelectric transducer element connected between the legs. The transducer assembly herein disclosed has been found to be particularly effective as a pick up when applied to a soundboard of a musical instrument, such as a piano, and the like.

REFERENCES:
patent: 4058045 (1977-11-01), Jennings et al.
patent: 4507805 (1986-02-01), Clevinger
patent: 4785704 (1988-11-01), Fishman
patent: 4916350 (1990-04-01), Madden et al.
patent: 5078041 (1992-01-01), Schmued
patent: 5206449 (1993-04-01), McClish
patent: 5212336 (1993-05-01), Barcus
patent: 5218159 (1993-06-01), McClish

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