Position detection apparatus
US6145213A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1999 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Mar 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/34707
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.