Self-calibrating dimension gauge

Details Self-calibrating dimension gauge Self-calibrating dimension gauge

1975-01-29

1976-10-12

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324 61P, G01R 2726

Patent

active

039861090

ABSTRACT:
A self-calibration system for use with a dimension-measuring probe. The self-calibration system includes a probe fixture which permits alternative orientation of the probe toward the work piece being gauged, or toward a readily available reference such as free space and a dimension reference typically of virtual infinite size. A closed loop feedback circuit is provided to develop a compensating signal for combination with the probe output to yield a dimension representing signal. The compensating signal is automatically set with the probe oriented toward the reference dimension to cause the dimension representing signal to correspond to a known value. Thereafter, the compensating signal is held constant and gauging of work piece dimensions can continue with system errors eliminated by the compensating signal.

REFERENCES:
patent: 3353098 (1967-11-01), Foster et al.
patent: 3379972 (1968-04-01), Foster et al.
patent: 3387776 (1968-06-01), Stillwell et al.
patent: 3452273 (1969-06-01), Foster
patent: 3487300 (1969-12-01), Merrell
patent: 3761810 (1973-09-01), Fathauer
patent: 3775678 (1973-11-01), Abbe

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