Acceleration insensitive oscillator

Details Acceleration insensitive oscillator Acceleration insensitive oscillator

1985-03-25

1986-03-11

LaRoche, Eugene R.

Oscillators

Electromechanical resonator

Crystal

331116R, 331158, H03B 532

Patent

active

045756902

ABSTRACT:
A crystal oscillator, including two crystals of unequal acceleration sensvity magnitude and mounted such that their respective acceleration sensitivity vectors are aligned in an anti-parallel relationship, further includes at least one electrical reactance, such as a variable capacitor, coupled to one of the crystals for providing cancellation of acceleration sensitivities. After the acceleration sensitivity vectors of the two crystals are aligned anti-parallel, the variable capacitor is adjusted until the net or resultant acceleration sensitivity vector of the pair of resonators is reduced to zero. A second electrical reactance, such as a variable capacitor, is utilized as a tuning capacitor for adjusting the oscillator's output frequency to the desired value, while maintaining the cancellation of acceleration sensitivities.

REFERENCES:
patent: 3978432 (1976-08-01), Onoe
patent: 4344010 (1982-08-01), Vig et al.
patent: 4365182 (1982-12-01), Ballato et al.
patent: 4410822 (1983-10-01), Filler
patent: 4451755 (1984-05-01), Vig et al.
patent: 4453141 (1984-06-01), Rosati

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