Dual range, cantilevered mass accelerometer

Details Dual range, cantilevered mass accelerometer Dual range, cantilevered mass accelerometer

1980-11-03

1982-08-31

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Response to multiple sensing means or motion conditions

73517R, 310329, G01P 1508

Patent

active

043465978

ABSTRACT:
A dual range accelerometer includes a mass 10 supported on a cantilevered beam 12, there being stops 70, 71 such that for low accelerations the beam acts as a cantilever and for high accelerations, one of the stops causes the beam to flex as a beam supported at both ends. Surface acoustic wave devices 17, 46 provide a signal having a frequency which is a function of strain in the beam 12, thereby to detect accelerations in two different ranges.

REFERENCES:
patent: 2909744 (1959-10-01), Giovanni
patent: 3940636 (1976-02-01), Perahia
patent: 4301683 (1981-11-01), Hartemann et al.

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