Patent ID: 7043846

Claim:
A method for calibrating a measuring machine having a feeler probe, comprising the steps of: providing, in the reference frame of the measuring machine, a reference gauge comprising a first, middle and third gauge blocks, wherein the middle gauge block is placed between the first gauge block and the third gauge block, a thickness of the middle gauge block corresponding to a reference dimension (d) of the reference gauge, the first and third gauge block defining a calibrated fork, the middle gauge block protruding from the first and third gauge blocks; measuring the reference dimension of the reference gauge by bringing the feeler probe in contact with a first face of the first gauge block and with a second face of the third gauge block, juxtaposed to the first face, when the dimension of the feeler probe does not exceed the reference dimension of the reference gauge; measuring the reference dimension of the reference gauge by bringing the feeler probe in contact with two opposed faces of the middle gauge block, when the dimension of the feeler probe exceeds the reference dimension of the reference gauge.