Method of determining the measuring uncertainty of a coordinate measuring device
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United States of America Patent
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Jan 23, 2001
Grant Date -
N/A
app pub date -
Oct 8, 1998
filing date -
Oct 9, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
To determine the measuring uncertainty of a coordinate measuring machine, a real measurement is first made of a workpiece, with any compensation provided for on the machine disabled, to obtain a measured value of one or more required quantities; a predetermined number of simulation cycles are then performed according to the Monte Carlo method to statistically vary a given number of influence parameters affecting the measurement and generate simulated values of the required quantity; and the measuring uncertainty value is determined by statistically analyzing the deviations between the simulated values and the measured value.
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