Title :
Influence of rail wear on output voltage of eddy-current rail displacement sensor
Author :
Yoshifumi Shimojima;Yinggang Bu;Tsutomu Mizuno;Takafumi Asahi;Makoto Ito;Shigemi Enoki
Author_Institution :
Faculty of Engineering, Shinshu University, Nagano, Japan
Abstract :
This paper describes the structure and output voltage characteristics of a rail displacement sensor comprising triangular coils. The calculation was demonstrated under a few assumptions. The maximum output voltage error between the measured and the calculated values was 2.4%. The influence of rail wear on output voltage leads to a displacement error of 12 mm.
Keywords :
"Rails","Coils","Impedance","Measurement uncertainty","Displacement measurement","Impedance measurement","Capacitance"
Conference_Titel :
Sensing Technology (ICST), 2015 9th International Conference on
Electronic_ISBN :
2156-8073
DOI :
10.1109/ICSensT.2015.7438429
