Apparatus for determining frequency versus acceleration characte

Details Apparatus for determining frequency versus acceleration characte Apparatus for determining frequency versus acceleration characte

1985-08-29

1986-03-25

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 57Q, G01R 2922

Patent

active

045786348

ABSTRACT:
The disclosed apparatus for determining the acceleration induced changes in the electrical characteristics of a quartz crystal includes all the apparatus necessary for subjecting the crystal to random acceleration forces and simultaneously determining the electrical characteristics of the crystal. More specifically a vibration generator is provided to subject the crystal under test to random vibrations of a predetermined acceleration. A low noise signal generator provides a signal at the resonant frequency of the crystal. The crystal couples the output of the low noise signal generator to a phase detector to determine the phase shift of the crystal. The output signal of the phase shift detector is analyzed to determine the acceleration versus electrical characteristics of the crystal under test.

REFERENCES:
patent: 4467271 (1984-08-01), Ruckenbauer et al.

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