Piezoelectrically driven tuning fork with integral damper member

Details Piezoelectrically driven tuning fork with integral damper member Piezoelectrically driven tuning fork with integral damper member

1980-08-18

1982-07-20

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310326, 333200, H01L 4108

Patent

active

043408354

ABSTRACT:
The present invention is directed to a tuning fork wherein a damping piece is provided, either integral with said tuning fork vibrator or a separate piece attached thereto, and wherein a damper member is intersected between said damping piece and a housing for accommodating the tuning fork vibrator.
Since the (1/2)f.sub.O spurious response which is caused in the tuning fork vibrator to be spread within the damping piece is adapted to be absorbed by the damper member, the tuning fork is made smaller in shape.

REFERENCES:
patent: 3354413 (1967-11-01), Ko
patent: 3480809 (1969-11-01), Grib
patent: 3581130 (1971-05-01), Grib
patent: 3816778 (1974-06-01), Frey
patent: 3984790 (1976-10-01), Tanaka
patent: 3986150 (1976-10-01), Tanaka et al.
patent: 4025879 (1977-05-01), Tanaka et al.
patent: 4037121 (1977-07-01), Nakamura et al.
patent: 4037179 (1977-07-01), Terayama
patent: 4193008 (1980-03-01), Nakamura
patent: 4220885 (1980-09-01), Yamashita

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