Installation for controlling the position of a movable part

Details Installation for controlling the position of a movable part Installation for controlling the position of a movable part

1978-07-07

1980-04-01

Little, Willis

Geometrical instruments

Area integrators

Electrical

356141, G01B 520

Patent

active

041954122

ABSTRACT:
Apparatus for controlling the position of a part, e.g. a feeler or work tool, along two orthogonal directions, the part being slideable in a first slide extending in one direction and mounted on a carriage movable along a second slide extending in the other direction and mounted on a support. The apparatus comprises a device for locating the position of the carriage on the second slide and the movable part on the first slide, a device for measuring the error in straightness of said second slide and a device for measuring the error in orthogonality of the first slide, each device comprising a laser generator for producing a laser beam parallel to the respective direction and a photoelectric detector in the path of the respective beam and subject to the respective error to be measured.

REFERENCES:
patent: 3600987 (1971-08-01), Kvasnicka
patent: 3722842 (1973-03-01), Schweizer
patent: 3736818 (1973-06-01), Ennis
patent: 3741659 (1973-06-01), Jones, Jr.

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