Force transducer

Details Force transducer Force transducer

G - Physics

01

L

73/69, 340/135.1

G01L 1/20 (2006.01) G01L 1/14 (2006.01) H01H 13/702 (2006.01) G05G 9/047 (2006.01)

Patent

CA 1212258

ABSTRACT OF THE INVENTION An energy conversion and transmission device is disclosed which, in its preferred embodiment, has a rigid substrate with a resis- tive area printed on its top surface, a spacer of non-conductive material with an aperture therethrough positioned in register with the rigid sub- strate resistive area, and a flexible substrate with a resistive area printed on its bottom surface in register with the aperture and the rigid substrate resistive area so that application of a force to the flexible substrate with an elastomeric actuator will move the flexible substrate resistive area to establish an electrical contact area with the rigid substrate resistive area, which electrical contact area increases and, thus, the resistivity of that area decreases as the applied force in- creases. Thus, when an electrical potential is applied across the two resistive areas, current flow through the two resistive areas increases as the applied force increases. Capacitive, inductive and other embodi- ments of the device are also disclosed.

432705

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