Interferometric Methods for Measurement of Coefficient of Linear Thermal Expansion
Metrology & Measurement Technology(2011)
Abstract
Optical interferometry is applied widely in measurements of coefficients of linear thermal expansion of materials.The principles and typical systems of interferometers for measurements of coefficients of linear thermal expansion are introduced.The characteristics of various optical systems of interferometers are compared and analyzed.Issues that should be considered in optical system designs for improving measurement accuracy are pointed out.
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Key words
interferometer,coefficient of linear thermal expansion,measurement
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