Accelerometer with improved shock resistance

Details Accelerometer with improved shock resistance Accelerometer with improved shock resistance

1989-07-06

1991-04-23

Chapman, John

Measuring and testing

Vibration

Sensing apparatus

310329, 310348, G01P 1509

Patent

active

050091069

ABSTRACT:
The shock resistance of an accelerometer for the measurement of an axial acceleration, having a sensing part consisting of an electromechanical beam, a spacer and a beam carrier can significantly be improved by making the two sections of the oscillating beam of unequal lengths and by providing the beam with a length between 8 mm and 11 mm and a width between 2.5 mm and 6.5 mm at a thickness of 0.6 mm. That way an optimum relationship between measuring sensitivity and shock resistance of the accelerometer will be reached.

REFERENCES:
patent: 3673441 (1972-06-01), Royster
patent: 4337641 (1982-07-01), Sugihara et al.
patent: 4373378 (1983-02-01), Fujishiro et al.
Modal Testing, Theory and Practice, by D. E. Ewins, Research Study Press Ltd., 1984, pp. 87-152.

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