Laser Shearing-Interferometry for Measurement of Rail Straightness Accuracy and Error Analysis

Sen Li

doi:10.4028/www.scientific.net/AMM.401-403.1063

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 401-403Laser Shearing-Interferometry for Measurement of...

Laser Shearing-Interferometry for Measurement of Rail Straightness Accuracy and Error Analysis

Abstract:

A long rail straightness measurement method is given for the portable laser alignment measurement system which is based on laser shearing interference fringes. Through theoretical derivation, mathematical model is set up between the laser phase differential linearity error and shearing interferometry. Large numbers of experiments have verified correctness of long rail straightness measurement method, analyzed the cause of error and provided ways for error reduction.

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Periodical:

Applied Mechanics and Materials (Volumes 401-403)

Pages:

1063-1067

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.401-403.1063

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Online since:

September 2013

Authors:

Sen Li

Keywords:

Error Analysis, Laser Alignment Technique, Shearing-Interferometry, Straightness Accuracy

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References

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