Title :
Portable measurement equipment for site determination of rail track parameters
Author :
Hill, R.J. ; Brillante, S.
Author_Institution :
Dept. of Electron. & Electr. Eng., Bath Univ., UK
Abstract :
This paper describes a computer-based automated test procedure for measuring the loop and rail-rail transmission line parameters of rail track. Measurement data from short-circuit and open-circuit tests are subjected to signal averaging to extract noise, followed by Fourier decomposition to extract the amplitude and phase of the fundamental. Sample results are presented for track impedance and admittance in the frequency range 1 Hz to 25 kHz. The methodology is generic in that it can be applied to any track length and any two-rail system including catenary-rail circuits for traction power networks and rail-rail circuits for track signalling systems
Keywords :
automatic test equipment; automatic testing; electric admittance measurement; electric impedance measurement; portable instruments; railways; traction; Fourier decomposition; catenary-rail circuits; loop parameters; noise extraction; open-circuit tests; portable measurement equipment; rail track parameters determination; rail-rail circuits; rail-rail transmission line parameters; short-circuit tests; signal averaging; test procedure automation; track admittance; track impedance; track signalling systems; traction power networks; Automatic testing; Circuits; Data mining; Noise level; Noise measurement; Phase measurement; Power transmission lines; Rails; Tracking loops; Transmission line measurements;
Conference_Titel :
Railroad Conference, 1998. Proceedings of the 1998 ASME/IEEE Joint
Conference_Location :
Philadelphia, PA
Print_ISBN :
0-7803-4852-4
DOI :
10.1109/RRCON.1998.668077
