Temperature-compensated quartz oscillator

Details Temperature-compensated quartz oscillator Temperature-compensated quartz oscillator

1984-05-02

1985-12-10

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310360, 310369, 310349, 394117, 331116R, H01L 4108

Patent

active

045582483

ABSTRACT:
A temperature-compensated quartz oscillator having a first plate of quartz that carries a first electrode which displays a sensitivity to temperature that exceeds that of the piezoelectric quartz wafer which comprises a first resonator which vibrates at a reference frequency f.sub.M. The first plate cooperates with the first electrode and a third electrode to form a second quartz resonator. Means for applying to the first and third electrodes an excitation electric power to drive the active portion of the first plate according to a mode which is sensitive to temperture, at a frequency f.sub.T close to, but slightly different from, the reference frequency f.sub.M. Means for comparing, which enable comparison of signals at the terminals of the second and third electrodes, and control means for the regulating means for applying an excitation electric power from the active portion of the piezoelectric wafer.

REFERENCES:
patent: Re26707 (1969-11-01), Cutler et al.
patent: 2157665 (1939-05-01), Hollmann
patent: 3826931 (1974-07-01), Hammond
patent: 3978432 (1976-08-01), Onoe
patent: 4079280 (1978-03-01), Kusters et al.
patent: 4135108 (1979-01-01), Besson
patent: 4160183 (1979-07-01), Kusters et al.
patent: 4317059 (1982-02-01), Besson
patent: 4334168 (1982-06-01), Besson et al.
patent: 4437773 (1984-03-01), Dinger et al.
patent: 4464598 (1984-08-01), Besson et al.

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