Rail corrugation measurement using fiber laser accelerometers

Wenzhu Huang; Yanliang Du; Wentao Zhang; Huaixiang Ma; Fang Li

doi:10.1117/12.968594

7 November 2012 Rail corrugation measurement using fiber laser accelerometers

Wenzhu Huang, Yanliang Du, Wentao Zhang, Huaixiang Ma, Fang Li

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421AO (2012) https://doi.org/10.1117/12.968594
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

This paper presents a rail corrugation measurement system based on fiber laser accelerometers (FLAs) which are installed on the bogie of the train. When the train passes the rail with corrugation, the corrugation induced acceleration of the bogie will be detected by the FLAs. An inertial algorithm based on double integration and wavelet denoising method is proposed to accurately estimate the rail corrugation. Field test is carried out on the Datong-Qinhuangdao Railway in north China. The test results are compared with the results of a rail inspection car, which shows that the fiber laser sensing system have a good performance in rail corrugation monitoring.

Citation Download Citation

Wenzhu Huang, Yanliang Du, Wentao Zhang, Huaixiang Ma, and Fang Li "Rail corrugation measurement using fiber laser accelerometers", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AO (7 November 2012); https://doi.org/10.1117/12.968594

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