Title :
Rail abrasion measurement system based on nonlinear compensation
Author :
Wang, Hao-Quan ; Li, Bo
Author_Institution :
Key Lab. on Instrum. Sci. & Dynamic Meas., North Univ. of China, Taiyuan, China
Abstract :
Measurement of rail abrasion is an important way to ensure the safety of transportation. The method of Non-contact measurement is adopted to rails with eddy current sensors based on the structural analysis of rails and the principle of least squares curve fitting. The system is composed of mechanical devices, sensors, data acquisition circuits and computer. It uses MCU as the main control unit to complete collection of data and use a date fitting method to process signals. Experimental results indicate that this method is scientific and practical.
Keywords :
abrasion; curve fitting; rails; railway safety; eddy current sensors; least squares curve fitting; noncontact measurement; nonlinear compensation; rail abrasion measurement system; structural analysis; transportation safety; Current measurement; Data acquisition; Mathematical model; Mechanical sensors; Rails; Ultrasonic variables measurement; Nonlinear Compensation; curve fitting; non-destructive; rail abrasion degree; testing;
Conference_Titel :
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4244-7235-2
Electronic_ISBN :
978-1-4244-7237-6
DOI :
10.1109/ICCASM.2010.5622667
