Coordinate measuring apparatus having a bridge configuration

Details Coordinate measuring apparatus having a bridge configuration Coordinate measuring apparatus having a bridge configuration

1999-05-13

2000-12-19

Bennett, G. Bradley

Geometrical instruments

Distance measuring

Error compensation

33503, G01B 5004

Patent

active

061612987

ABSTRACT:
The invention is directed to a coordinate measuring apparatus in bridge configuration wherein a bridge spanning the measuring pad is guided on two guides laterally of the measuring pad. To avoid measurement errors, which are caused by different warming of the coordinate measuring apparatus, the guides are mounted on the support rods which have a low thermal coefficient of expansion and the support rods are arranged in a support structure.

REFERENCES:
patent: 4495703 (1985-01-01), Sakata et al.
patent: 4587622 (1986-05-01), Herzog
patent: 4763420 (1988-08-01), McCabe et al.
patent: 4958437 (1990-09-01), Helms
patent: 4997287 (1991-03-01), Tittl
patent: 5031331 (1991-07-01), Herzog et al.
patent: 5195826 (1993-03-01), Enderle et al.
patent: 5446971 (1995-09-01), Neumann
patent: 5646732 (1997-07-01), Gerlach
patent: 6058618 (2000-05-01), Hemmelgarn et al.

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