Roundness calibration standard

Details Roundness calibration standard Roundness calibration standard

1982-01-29

1984-02-07

Martin, Jr., William D.

Geometrical instruments

Area integrators

Electrical

33168R, 33178R, 73 1J, G01B 528

Patent

active

044294646

ABSTRACT:
A roundness calibration standard is provided with a first arc constituting the major portion of a circle and a second arc lying between the remainder of the circle and the chord extending between the ends of said first arc.

REFERENCES:
patent: 3180031 (1965-04-01), Roeger et al.
patent: 3866829 (1975-02-01), Egawa et al.

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