Measuring the thermal expansion coefficient of the carbon fiber optical tube by heterodyne laser interferometry

Kai Zhang; Wenjun He; Lei Zhang; Xuan Zhao; Yuqi Tian

doi:10.1117/12.2256226

7 November 2016 Measuring the thermal expansion coefficient of the carbon fiber optical tube by heterodyne laser interferometry

Kai Zhang, Wenjun He, Lei Zhang, Xuan Zhao, Yuqi Tian

Author Affiliations +

Proceedings Volume 10141, Selected Papers of the Chinese Society for Optical Engineering Conferences held July 2016; 101411I (2016) https://doi.org/10.1117/12.2256226
Event: Selected Proceedings of the Chinese Society for Optical Engineering Conferences held July 2016, 2016, Changchun, China

Abstract

In This paper, we present an experimental design of measuring thermal expansion coefficient of the carbon fiber optical tube based on the heterodyne laser interferometry. In the course of the experiment, the error caused by the temperature changes of the external environment was considered, and the compensation is carried out. The data of the experiment was recorded and analyzed. The curve of the thermal expansion coefficient of the carbon fiber optical tube was close. The measurement of the thermal expansion coefficient was finished within a small range of temperature changes. The thermal expansion coefficient of the carbon fiber optical tube was 6 0.78 x 10^-5m/ ° C − × , which was consistent with the experience value. Athermalization for the supporting structure of the Cassette optical system was designed according to the results of the experiment.

Citation Download Citation

Kai Zhang, Wenjun He, Lei Zhang, Xuan Zhao, and Yuqi Tian "Measuring the thermal expansion coefficient of the carbon fiber optical tube by heterodyne laser interferometry", Proc. SPIE 10141, Selected Papers of the Chinese Society for Optical Engineering Conferences held July 2016, 101411I (7 November 2016); https://doi.org/10.1117/12.2256226

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