Quartz crystal vibrator with partial electrodes for harmonic sup

Details Quartz crystal vibrator with partial electrodes for harmonic sup Quartz crystal vibrator with partial electrodes for harmonic sup

1974-09-11

1976-03-23

Budd, Mark O.

Electrical generator or motor structure

Educational or construction units or kits

310 82, 310 85, 310 98, H01L 4104

Patent

active

039462579

ABSTRACT:
It is disclosed a quartz crystal vibrator for a timepiece having a partial electrode which is able to offset the charge produced by higher harmonic oscillation.
According to this invention, higher harmonic oscillation is prevented and vibrators oscillate by only fundamental frequency.

REFERENCES:
patent: 3128397 (1964-04-01), Shinada et al.
patent: 3131320 (1964-04-01), Shinada et al.
patent: 3683213 (1972-08-01), Staudte
patent: 3697766 (1972-10-01), Ganter
patent: 3697789 (1972-10-01), Kato
patent: 3766616 (1973-10-01), Staudte

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