Coordinate measuring apparatus having a probe movably journalled

Details Coordinate measuring apparatus having a probe movably journalled Coordinate measuring apparatus having a probe movably journalled

1996-09-13

1999-04-06

Fulton, Christopher W.

Geometrical instruments

Gauge

Coordinate movable probe or machine

33702, 33704, G01B 5008

Patent

active

058903003

ABSTRACT:
The invention is directed to a coordinate measuring apparatus wherein the influences of temperature on the measuring uncertainty of the apparatus are eliminated. Components of the two pivot arms, which determine the spacing A of the rotational axes (6, 8) and the spacing of the rotational axis 8 to the probe axis 10, are made of materials having positive and negative thermal expansion coefficients.

REFERENCES:
patent: 3077958 (1963-02-01), Grimsey, Jr.
patent: 3311986 (1967-04-01), Zawistowski
patent: 3334419 (1967-08-01), Jaye
patent: 3528206 (1970-09-01), Baird
patent: 4282688 (1981-08-01), Krim
patent: 4761887 (1988-08-01), Brown et al.
patent: 4815213 (1989-03-01), McCabe et al.
patent: 5050311 (1991-09-01), Nelle
patent: 5095632 (1992-03-01), Hassler, Jr. et al.
patent: 5396712 (1995-03-01), Herzog
patent: 5402582 (1995-04-01), Raab

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