Elastic surface wave accelerometer

Details Elastic surface wave accelerometer Elastic surface wave accelerometer

1978-06-27

1980-04-29

Myracle, Jerry W.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

G01P 1508

Patent

active

041999908

ABSTRACT:
The invention relates to accelerometers comprising a vibrating elastic body associated with an electrical oscillator for maintaining its oscillations and a frequency measuring device for measuring its frequency. More particularly, the invention relates to an accelerometer in which the vibrations are in the form of elastic surface waves propagated along one face of a wafer of piezoelectric material cemented to a substrate. Measurement of the acceleration is based on the measurement of a frequency deviation or phase shift undergone by the elastic surface waves.

REFERENCES:
patent: 3517560 (1970-06-01), Jacobs et al.
patent: 3863497 (1975-02-01), Vaart
patent: 3961293 (1976-06-01), Hartmann
patent: 3999147 (1976-12-01), Otto et al.
patent: 4096740 (1978-06-01), Sallee

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