A method for minimizing coordinate measuring machine (CMM) inspection time in the accuracy measurement of roundness is described. The peculiar feature of the method is to employ a presampling with a strategic distribution of the points, in order to decrease the sample size in point-by-point acquisition. Point distribution is derived from a method for detecting two of the most frequent categories of deviation in the profile: waviness and random deviation. Depending on the actual category of deviation, a subsequent sampling, which locates points near the main features of the profile, is performed to refine the error of roundness. The main goal of the system is to detect an exact roundness error by means of a method for minimizing inspection time for wavy deviation with a fixed level of noisy band superimposed.
A form of deviation-based method for coordinate measuring machine sampling optimization in an assessment of roundness
ROSSI, ANDREA
2001-01-01
Abstract
A method for minimizing coordinate measuring machine (CMM) inspection time in the accuracy measurement of roundness is described. The peculiar feature of the method is to employ a presampling with a strategic distribution of the points, in order to decrease the sample size in point-by-point acquisition. Point distribution is derived from a method for detecting two of the most frequent categories of deviation in the profile: waviness and random deviation. Depending on the actual category of deviation, a subsequent sampling, which locates points near the main features of the profile, is performed to refine the error of roundness. The main goal of the system is to detect an exact roundness error by means of a method for minimizing inspection time for wavy deviation with a fixed level of noisy band superimposed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
