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1 2013

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Determination of operator’s impact on the measurement done using coordinate technique

Ostrowska K., Szewczyk D., Sładek J.

Advances in Science and Technology. Research Journal

2013

Vol. 7, nr 20

11--16

Coordinate measuring arms (CMAs) are devices which more and more often replace conventional coordinate measuring machines because of their undoubted advantages, such as mobility, the opportunity to increase the measuring volume, the opportunity to connect the optical probe, and above all, good price-quality ratio. Because these devices are handheld and redundant, what has the greatest impact on the measurement result accuracy are the operator, the machine kinematics and its ability to obtain repeatable measurement results; despite the fact that one point can be obtained from an infinite number of shoulders’ positions. In this paper it was determined by using R&R method how significant are the impacts of both the operator and the measuring device on the accuracy of measurements done with CMA, both with rigid switch probe and optical probe.