Application of laser sensors for on-line calibration of displacement transducers

Jing Xie; Hong-tang Gao; Xiao-you Ye; Feng-qiang Gu; Dong-sheng Li

doi:10.1117/12.885299

31 December 2010 Application of laser sensors for on-line calibration of displacement transducers

Jing Xie, Hong-tang Gao, Xiao-you Ye, Feng-qiang Gu, Dong-sheng Li

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75445U (2010) https://doi.org/10.1117/12.885299
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

On-line calibration is widely used no matter in science research or industrial production. In this paper, an on-line calibration approach for industrial displacement transducers has been developed. We used laser displacement sensor as standard and improved its accuracy to meet the requirements in different applications. In order to achieve the objective, laser sensor must be calibrated by automatic interference comparator. Laser sensor and automatic interference comparator measured the same displacement simultaneously and obtained the laser displacement sensor's calibration curve by analyzing the measurement data. Then the on-line calibration system including mechanical device and calibration platform was developed with the calibrated laser sensor. Numerous factors, such as verticality, colors, reflector material and vibration, contribute to errors in the compact laser displacement sensor measurements under field conditions. Analyzing the data obtained from the device's application of air spring system in automatic interference comparator, the presented paper outlines the error compensation methods and mathematical model. Experimental results show that laser sensor on-line calibration system can solve factory calibrating problems with accuracy requirement over 0.3%.

Citation Download Citation

Jing Xie, Hong-tang Gao, Xiao-you Ye, Feng-qiang Gu, and Dong-sheng Li "Application of laser sensors for on-line calibration of displacement transducers", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75445U (31 December 2010); https://doi.org/10.1117/12.885299

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