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Optical Engineering

Optical reference profilometry
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Paper Abstract

The optical reference profilometer is a coordinate measurement machine (CMM) configuration that utilizes a special optical referencing frame to provide a stable and accurate surface measurement. This referencing frame provides several mechanical advantages that make it possible to use lower precision mechanical components while still maintaining high measurement accuracy. The optical reference profilometer also provides reduced measurement sensitivity to thermal variations of the environment. By utilizing a superinvar metering rod network, this CMM system is essentially thermally insensitive to temperature changes of the order of 1°C. This special feature makes the optical reference profilometer functional at a high measurement accuracy level in an open laboratory environment.

Paper Details

Date Published: 1 December 2001
PDF: 7 pages
Opt. Eng. 40(12) doi: 10.1117/1.1419192
Published in: Optical Engineering Volume 40, Issue 12
Show Author Affiliations
Stephan R. Clark, Agilent Technologies (United States)
John E. Greivenkamp, Univ. of Arizona (United States)

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