Device providing compensation for acceleration sensitivity of an

Details Device providing compensation for acceleration sensitivity of an Device providing compensation for acceleration sensitivity of an

1984-11-13

1986-09-02

Laroche, Eugene R.

Oscillators

Electromechanical resonator

Crystal

331 65, 331116R, 73517A, H03B 504

Patent

active

046098852

ABSTRACT:
A device having the function of compensating for the acceleration sensitivity of an oscillator of given nominal frequency comprises an acceleration-sensing element such as a filter which is capable of producing a signal having a nominal frequency equal to that of the oscillator to be compensated but, in respect of its nominal frequency, has higher sensitivity to acceleration than the oscillator to be compensated. The phase difference between the frequency of the oscillator and the frequency produced by the filter is compared in a mixer in order to extract the phase modulation induced by the acceleration. A follow-up control amplifier receives the output signal of the phase comparator and produces at its output a signal for correcting the oscillator.

REFERENCES:
patent: 3201984 (1965-08-01), Hinnah et al.
patent: 4096445 (1978-06-01), Hopwood et al.
patent: 4318063 (1982-03-01), Przyjemski
patent: 4453141 (1984-06-01), Rosati
Joseph M. Przyjemski, Proceedings of the 32nd Annual Symposium on Frequency Control, 1978, Atlantic City, NJ, pp. 426-431.

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