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Optical Engineering

Errors in optical shape measurement caused by a high-temperature atmosphere
Author(s): Makoto Yamauchi
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Paper Abstract

There is an increasing need for on-site measurements in the manufacturing industry. In several cases, the shape of a work piece needs to be optically measured in high-temperature atmospheres up to 500 °C. Measurement errors caused by a lump of high-temperature air in an optical path were theoretically investigated using a model of a cylindrical lens made of air. Errors predicted by the model qualitatively explained the experimental results well. Quantitatively, the predicted errors were always larger than the experimental ones. The model was found to be useful for estimating the maximum values of the errors, which has important practical uses.

Paper Details

Date Published: 1 September 2009
PDF: 4 pages
Opt. Eng. 48(9) 096001 doi: 10.1117/1.3212674
Published in: Optical Engineering Volume 48, Issue 9
Show Author Affiliations
Makoto Yamauchi, National Institute of Advanced Industrial Science and Technology (Japan)

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