Shielded piezoelectric acoustic pickup for mounting on musical i

Details Shielded piezoelectric acoustic pickup for mounting on musical i Shielded piezoelectric acoustic pickup for mounting on musical i

1979-07-25

1982-01-12

Psitos, Aristotelis M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310326, 310324, H04R 1500, H01L 4104

Patent

active

043107303

ABSTRACT:
A piezoelectric transducer adapted for adherence to a sounding board of a musical instrument. The piezoelectric crystal has electrically conductive films on each surface. The first surface film is connected to the output conductor and the entire surface adheres to the insulated surface of a conductive inertial mass that is electrically connected to the second conductor surface of the crystal and to the output conductor shield, or ground reference, to provide self-shielding of the transducer and to obviate need for an additional shielded housing. The crystal-mass combination is then preferably potted in a suitable dipping plastic to form a small inexpensive pickup unit with high quality output which may be readily attached to a vibrating surface, such as a drum or an instrument sounding board.

REFERENCES:
patent: 3167668 (1965-01-01), Nesh
patent: 3506857 (1970-04-01), Tolliver et al.
patent: 3538232 (1970-11-01), Bachtig et al.
patent: 3562451 (1971-02-01), Mullen, Jr. et al.
patent: 3700938 (1972-10-01), Bryant
patent: 3728562 (1973-04-01), Herson et al.
patent: 3970879 (1976-07-01), Kumon
patent: 3979565 (1976-09-01), McShane
patent: 4030396 (1977-06-01), Mariner
patent: 4051396 (1977-09-01), Berlincourt
patent: 4054808 (1977-10-01), Tanaka
patent: 4156156 (1979-05-01), Sweany et al.

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