Method and apparatus for dial indicators calibration

Details Method and apparatus for dial indicators calibration Method and apparatus for dial indicators calibration

1980-06-16

1983-03-29

Corbin, John K.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01B 1102

Patent

active

043781608

ABSTRACT:
A method and an apparatus for dial indicator calibration comparing the real displacement of the dial indicator rod with its ideal linear displacement during each calibration interval given by the dial indicator hand, having a Michelson interferometer with a laser as a linear displacement transducer, an opto-electronic transducer to read the dial, indicator hand position for each calibration interval, an electronic control urgent which controls the operation of the whole apparatus and feeds to a printer the measuring errors in length units and the corresponding calibration intervals.

REFERENCES:
patent: 3486824 (1969-12-01), Cook et al.
Domareva et al., "Laser Interferometer for Scales," Izmeritel'naya Tekhuika, #11, pp. 51-53, 11/75.

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