Apparatus for measuring displacement in at least two orthogonal

Details Apparatus for measuring displacement in at least two orthogonal Apparatus for measuring displacement in at least two orthogonal

1977-03-21

1979-06-26

Aegerter, Richard E.

Geometrical instruments

Area integrators

Electrical

33143L, 33149J, G01B 322, G01B 520

Patent

active

041589190

ABSTRACT:
Measuring apparatus comprises a probe having a stylus supported on a housing by a spring extending in a plane transverse to the axis of the stylus and allowing the stylus to pivot about a center lying on the axis and to move linearly in the direction of the axis. A sensor has fixed and movable parts off-set from the axis, the movable part being connected to the stylus by a transverse arm. The sensor senses both pivotal and axial movement, the pivotal movement corresponding to movement of the work-contacting end of the stylus transverse to the axis. At least one further sensor is provided to sense at least the axial movement of the stylus. An electrical network responsive to both sensor outputs is arranged to discriminate between transverse and axial movements of the stylus. Alternatively the sensors are arranged to give a single output for any movement of the stylus.

REFERENCES:
patent: 2583791 (1952-01-01), Neff
patent: 3501943 (1970-03-01), Kelling et al.
patent: 3520063 (1970-07-01), Rethwish et al.
patent: 3534479 (1970-10-01), Paine

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