Abstract
This article examines a new approach to high-precision dilatometry that employs interference measurements of elongation. The fact that visual information is read from the entire interference field makes the measurements more informative as a whole. The data that is obtained is analyzed in real time with the use of special software, which allows more accurate measurement of the position of the fringes and reduces the error of measurement of the coefficient of thermal expansion to 2·10–9 K–1.
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Kompan, T.A., Korenev, A.S. & Lukin, A.Y. Automated Dilatometric System Employing Multvariate Analysis of Interference Patterns. Measurement Techniques 44, 601–607 (2001). https://doi.org/10.1023/A:1012371314171
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DOI: https://doi.org/10.1023/A:1012371314171