Displacement sensor with mechanical preamplification means

Details Displacement sensor with mechanical preamplification means Displacement sensor with mechanical preamplification means

1991-03-04

1992-05-26

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Specified electrical sensor or system

33788, 73782, G01B 716

Patent

active

051156806

ABSTRACT:
A device for measuring physical variables comprises a pair of thin planar members disposed symmetrically in a face-to-face arrangement about a plane including a reference axis defining the direction of displacement of a target object mechanically coupled to the pair of thin planar members, wherein the displacement in a first direction parallel to the reference axis increases the separation distance between the pair of thin planar members and the displacement in a second direction opposite to the first direction decreases the separation distance between the pair of thin planar members. The physical variable related to the displacement is determined as a function of an electrical parameter varying as a function of the separation distance between the pair of thin planar members such as the electrical capacitance or resistance therebetween measured by a capacitance or ohm meter.

REFERENCES:
patent: 3082621 (1963-03-01), Soderholm

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