Device for accurate measurement of the shape of a substantially

Details Device for accurate measurement of the shape of a substantially Device for accurate measurement of the shape of a substantially

1978-03-06

1980-02-05

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

33178F, 33DIG13, G01B 712, G01B 728

Patent

active

041864948

ABSTRACT:
Retractable feeler arms are disposed at uniform angular intervals around a central frame and elastically coupled to the frame for radial withdrawal or outward extension and displacement in a general movement of translation of the device. In the operating position, the tips of the feeler arms are maintained in contact with the cylindrical surface to be measured and differential measurements of the end positions of the feeler arms are taken by means of electrical detectors.

REFERENCES:
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patent: 2925660 (1960-02-01), Raulins
patent: 2927377 (1960-03-01), McMahan
patent: 3895446 (1975-07-01), Orlov et al.
patent: 3898741 (1975-08-01), Casey
patent: 3939570 (1976-02-01), Loftus
patent: 4017978 (1977-04-01), Peruchon et al.

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