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- W2350913350 abstract "The accurate measurement results of the gauge and alignment were achieved by integrating the output signals (left and right gauge offset, left and right profile offset) of the image sensor, the output signals of the alignment accelerometer and the output track inclination signal of the carbody inertial platform. The integration algorithm of track alignment was deduced theoretically. The response of the alignment accelerometer installed in the center of the gauge measuring beam was corrected by rotation and gravity amendment, and then convoluted with the triangular window function to get the second-order difference of the gauge measuring beam transverse displacement. Finally the right and left alignment values were obtained through filtering and quadratic integral. Through the design of the analog low-pass filter and the corresponding digital filter, it is realized that the amplitude-frequency response of acceleration filter has nothing to do with the speed of the track inspection car and the inspection accuracy of the system is ensured. The measured displacement by the alignment accelerometer and the measured displacement by the gauge system are compared to verify correctness of the measurement principle and system integration algorithm. The static verification and field test results show that the frame-type gauge-alignment measurement system has high detection precision, stable performance and the low failure rate." @default.
- W2350913350 created "2016-06-24" @default.
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- W2350913350 date "2010-01-01" @default.
- W2350913350 modified "2023-09-25" @default.
- W2350913350 title "Signal Integration Algorithm and System Validation in the Frame-Type Gauge-Alignment Measurement System" @default.
- W2350913350 hasPublicationYear "2010" @default.
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