Non-contact surface roughness measuring device

Details Non-contact surface roughness measuring device Non-contact surface roughness measuring device

1998-11-09

2000-12-26

Gutierrez, Diego

Geometrical instruments

Gauge

Movable contact probe, per se

33556, 33558, 33503, G01B 500, G01B 5004

Patent

active

061639737

ABSTRACT:
A non-contact surface roughness-measuring machine is provided which can avoid damage caused by collision with a workpiece and set a non-contact surface roughness probe at an appropriate position relative to a measurement surface of the workpiece. A non-contact surface roughness probe and a touch-signal probe are attached at a tip end of an arm of a coordinate measuring machine. A stylus of the touch-signal probe is protruded relative to a detection surface of the non-contact surface roughness probe, in which the protrusion amount is within an optimum distance of the non-contact surface roughness probe relative to the measurement surface. When the probes are brought close to the workpiece and the touch-signal probe detects contact, the non-contact surface roughness probe is set within the optimum distance relative to the workpiece.

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