Patent ID: 7603789
Filing Date: 2009-10-20
Classification: G01B

Abstract:
1. A probe for position determining apparatus, comprising: a probe body, a stylus holder, connected or connectable to a workpiece-contacting stylus, at least one bendable member, connected between the probe body and the stylus holder, which bends when the stylus contacts a workpiece, the bendable member having a neutral axis which is not subject to tension or compression during such bending, and at least one portion of the member lying off the neutral axis, said portion being subject to tension or compression during the bending, a strain-sensing element located on said portion which lies off the neutral axis, so as to produce an output signal when the stylus contacts a workpiece, the bendable member having a further portion which is closer to the neutral axis than the portion on which the strain-sensing element is located, said further portion having a greater stiffness than the portion on which the strain-sensing element is located.