Electrically digital display micrometer

Details Electrically digital display micrometer Electrically digital display micrometer

1979-07-02

1981-03-17

Little, Willis

Geometrical instruments

Area integrators

Electrical

33125C, 235 92DN, G01B 318

Patent

active

042558611

ABSTRACT:
The invention is constituted such that a tubular cavity is formed in the arm of a frame which movably supports the spindle; said cavity houses an index scale and a slit disc; and thereby the measured results can be read as an electric signal without affecting the function of the micrometer, said index scale and said slit disc being located coaxial with the spindle.

REFERENCES:
patent: 3482321 (1969-12-01), Inshaw
patent: 3877149 (1975-04-01), Masuda
patent: 3924336 (1975-12-01), Inouk
patent: 4034477 (1977-07-01), von Voros
patent: 4062120 (1977-12-01), Lacagnina et al.
patent: 4103427 (1978-08-01), Ledley

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