Transducer with conductive polymer bridge

Details Transducer with conductive polymer bridge Transducer with conductive polymer bridge

1989-07-28

1990-12-04

Hindenburg, Max

Surgery

Truss

Pad

128675, 338 4, 73726, A61B 502

Patent

active

049745964

ABSTRACT:
A transducer has a thick perimeter and an integral diaphragm extending across said perimeter, all formed of a thermoplastic resin. A thick mass is molded at the center of the diaphragm. Resistive elements formed of a conductive polymer are printed and baked on the diaphragm to form a Wheatstone bridge. The transducer is used as an accelerometer or load cell.

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"Effects of Axial Stretching on the Resistivity of Carbon Black Filled Silicone Rubber", by J. Kost, M. Narkis and A. Foux, Polymer Engineering and Science, Jul. 1983, vol. 23, No. 10, pp. 567-571.
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"Flat Diaphragm with Rigid Center", pp. 157-163, Flat and Corrugated Diaphragm Design Handbook, Mario DiGiovanni, Marcel Dekker, Inc., N.Y., 1982.

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