Position detection apparatus

Details Position detection apparatus Position detection apparatus

1999-03-23

2000-11-14

Bennett, G. Bradley

Geometrical instruments

Distance measuring

Error compensation

33706, G01B 704

Patent

active

061452130

ABSTRACT:
The present invention provides a position detection apparatus capable of reducing the bending moment in the longitudinal direction of a recording medium and being fixed to a machine tool without deforming the main body or the recording medium, thus enabling to obtain a high detection accuracy. The position detection apparatus detects a relative movement position between the reference block 4 and the movable block which move relative to each other along straight line. A round bar-shaped recording medium 12 is provided inside a frame 11 of a main body 2. The frame 11 is fixed to the reference block 4 with a fixing member 55 having an abutment surface for the frame 11 which abutment surface has a curvature only in a direction parallel to the longitudinal direction of the recording medium.

REFERENCES:
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patent: 4569137 (1986-02-01), Ichikawa
patent: 4570346 (1986-02-01), Burkhardt
patent: 4663853 (1987-05-01), Indo et al.
patent: 4991311 (1991-02-01), Nagaoka et al.
patent: 5375338 (1994-12-01), Nelle
patent: 5611148 (1997-03-01), Affa
patent: 6002126 (1999-12-01), Feichtinger

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