Abstract: The
accessibility of coordinate measuring machines (CMMs) in
dimensional is studied. The problem of computing the global
accessibility cone is solved using a method of angle
representation. Otherwise, the length and volume of probe are
considered sufficiently so that all the feasible probe
orientations could be determined for the inspection of a
workpiece when a touch trigger probe is used and the shortcoming
of abstracting a probe as an infinite half-line could be
overcome completely. In the end, an example is given to explain
the method.
Key words: Accessibility Probe orientation Collision Coordinate measuring machines (CMMs) Slot
*
This project
is supported by National Natural Science Foundation of China.
Manuscript received on January 4, 2000; revised manuscript July 15, 2000
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