Polymer film accelerometer

Details Polymer film accelerometer Polymer film accelerometer

1980-03-19

1982-02-16

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

310329, 310800, G01P 1509

Patent

active

043154336

ABSTRACT:
An accelerometer is provided which utilizes at least one sheet of piezoelric polymer film, supported under tension in a frame, for sensing the acceleration-responsive movements of an associated inertial mass and providing an electrical output in accordance therewith. The accelerometer preferably comprises a pair of such sheets with the inertial mass, e.g., a sphere, supported therebetween. Connections to an electrical measurement unit are made through a coaxial cable whose outer sheath and inner conductor are respectively connected to outer and inner electrodes formed by metallic coatings on the outer and inner surfaces of the sheets. The frame is preferably cylindrical and a pair of associated rings which fit within the frame serve to clamp the two sheets in place under tension.

REFERENCES:
patent: 2834952 (1958-05-01), Harris
patent: 3104334 (1963-09-01), Bradley et al.
patent: 3792204 (1974-02-01), Murayama
patent: 3893342 (1975-07-01), Florian et al.
patent: 3911388 (1975-10-01), Crump et al.
patent: 4051395 (1977-09-01), Taylor

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