Dual accelerometer, method for its fabrication and application t

Details Dual accelerometer, method for its fabrication and application t Dual accelerometer, method for its fabrication and application t

1984-02-21

1986-05-06

Levy, Stewart J.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

73 1D, 73 1DV, 73654, 310329, G01P 1509

Patent

active

045863776

ABSTRACT:
The accelerometer comprising two piezoelectric transducers. A common outer seismic mass acts on both transducers and an additional seismic mass acts only on the inner transducer. The sensitivity of the two transducers and the inertial forces acting thereof are so selected that the two transducers, under the action of an acceleration force, each deliver equal output signals. Both seismic masses are accessible for being tuned, in their assembled condition, prior to being mounted in a housing of the accelerometer. The accelerometer requires less material, is of small volume and lightweight, and is particularly suitable for being mounted in aircraft engines. It is also easy to manufacture.

REFERENCES:
patent: 3120622 (1964-02-01), Dranetz et al.
patent: 3566163 (1971-02-01), Fischer et al.
patent: 3727084 (1973-04-01), Epstein
patent: 3744322 (1973-07-01), Pacey et al.
patent: 4213144 (1980-07-01), Cochard

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