Coordinate measuring apparatus having a probe movably journalled via several rotational axes
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United States of America Patent
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Apr 6, 1999
Grant Date -
N/A
app pub date -
Sep 13, 1996
filing date -
Sep 16, 1995
priority date (Note) -
Expired
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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.
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