We have a x-y coordinate machine that has had an uncertainty assigned to it, based on length of measurement k=2 0.0042mm + (0.0000135L) where L is in mm.
example; at 0 mm the uncertainty is 4.2um, at 400 mm the uncertainty is 9.6um.
We periodically calibrate/verify this machine by reading a master calibrated scale.
Question: is it proper to use the full above mentioned uncertainty as my verification tolerance? Or do I need to include some other factor?
Thanks!!
example; at 0 mm the uncertainty is 4.2um, at 400 mm the uncertainty is 9.6um.
We periodically calibrate/verify this machine by reading a master calibrated scale.
Question: is it proper to use the full above mentioned uncertainty as my verification tolerance? Or do I need to include some other factor?
Thanks!!