Planar wave transducer assembly

Details Planar wave transducer assembly Planar wave transducer assembly

1991-06-25

1993-05-18

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84192, 84723, 84DIG24, G10H 100, G10H 300

Patent

active

052123367

ABSTRACT:
A planar wave transducer assembly comprising a rigid structure formed by a pair of foot pads, each with an upstanding leg and a span bar extending across the top of the legs. A piezoelectric transducer element is attached to the span bar, preferably in a channel extending between the legs, to convert wave motion in the plane defined by the flat bases of the foot pads into an electrical signal. The transducer assembly herein disclosed has been found to be remarkably effective as a pick up when applied to the soundboard of a piano, achieving excellent signal isolation as well as enhancing the acoustic sound produced by the instrument.

REFERENCES:
patent: 4058045 (1977-11-01), Jennings et al.
patent: 4230013 (1980-10-01), Wellings
patent: 4378721 (1983-04-01), Kaneko et al.
patent: 4567805 (1986-02-01), Clevinger
patent: 5078041 (1992-01-01), Schmued
Retailer, vol. 9, No. 2, Feb. 24, 1992, "Electrifying Acoustic Pianos".

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