Surface deviation measuring device

Details Surface deviation measuring device Surface deviation measuring device

1981-08-12

1983-11-15

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

33 1LE, G01B 728, G01B 734

Patent

active

044147473

ABSTRACT:
A pair of elongated, rigid electrical rods held by a frame in fixed parallel spaced relation to each other are connected to an ohmmeter circuit to measure linear resistance along one of the rods from a taut datum wire in contact with the rods. The other of the rods has a non-conductive pivot element at one end positioned in contact with a test surface at a point intersected by an axis parallel to said rods about which the frame is angularly displaced to bring the rods into gripping contact with the datum wire.

REFERENCES:
patent: 3208151 (1965-09-01), Rawstron
patent: 4135304 (1979-01-01), Kuntz
patent: 4213245 (1980-07-01), Armstrong

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