US 2004/0168332 A1 · Measuring instrument

Abstract

Centroid moments of components of an arm (220) are calculated based on three-dimensional model data and mass of the components, the centroid moments being combined to calculate a centroid position (G) of the entirety of the arm (220). The arm (220) is adjusted and swingably supported so that a stylus (222D) provided on an end of the arm (220) being swingably supported by a support (210) that moves relative to a workpiece (1) touches the workpiece (1) with a predetermined measuring force and the centroid position (G) is located on a horizontal plane including the fulcrum when the support (210) is inclined by an angle in the middle of an angle range within which the support (210) is rotated by a moving section (130). The measuring force is hardly fluctuated when the support (210) is inclined.

Claims6

Dependent claims

A measuring instrument, comprising:

a body movable relative to a workpiece;
a swinging body swingably supported by the body and having a probe to be in contact with the workpiece;
and
a movement sensor for detecting a swinging movement of the swinging body,
wherein the body is movable so that the body is inclined within a predetermined angle range relative to a horizontal surface,
wherein the swinging body is swingably supported so that a centroid position thereof is located on a plane parallel to the horizontal surface including a point where the swinging body is supported by the body when the body is inclined by an angle approximately in the middle of the predetermined angle range.

3 more elements

Dependencies are inferred from the claim text.

Measuring instrument

Life of this patent

Measuring instrument

Life of this patent

Abstract

Claims6