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1. 发明专利

JPS6017330A MEASURING DEVICE OF STRESS OF RAIL SHAFT 失效
公开(公告)号：JPS6017330A
公开(公告)日：1985-01-29
申请号：JP12480883
申请日：1983-07-11
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： KASHIWATANI KENJI , SUGIYAMA TOORU , ITOU MASAYUKI , KISHIMOTO SATORU , UENO YOSHIKATSU
IPC分类号： G01L1/00 , G01L5/00 , G01N27/72 , G01R33/12
摘要： PURPOSE:To obtain a reproducible and reliable result under non-destructive state of a rail as laid by combining a magnetic anisotropy sensor with a demagnetizer to demagnetize a measuring portion and measure the degree of the magnetic anisotropy of a rail to be measured. CONSTITUTION:Since the magnetic anisotropy sensor 1 can be reduced at the size of a part directly fitted to a sample to be measured, the sensor 1 is formed unitedly with a core 2, a coil 3 and a holder 4 of the demagnetizer as a direct measuring part 10. The demagnetizer consisting of the core 2 and the demagnetizing coil 3 is excited by AC and reduces its amplitude gradually. The measuring device is constituted by two parts, i.e. the direct measuring part 10 to be pressed to the rail 5 directly and a measuring circuit part 11 combining a demagnetizer control circuit 7, a measuring circuit 6 in the magnetic anisotropy sensor, etc. The latter circuit part 11 can be controlled consistently from demagnetizing operation to the final output by a microcomputer.

2. 发明专利

JPS5619404A ARITHMETIC UNIT FOR DEVIATION FROM TRACK 失效
公开(公告)号：JPS5619404A
公开(公告)日：1981-02-24
申请号：JP9488179
申请日：1979-07-27
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： KISHIMOTO SATORU , SAKURAZAWA TADASHI , TAKESHITA KUNIO , TAKAHASHI KENSAKU , UENO YOSHIKATSU , ITOU MASAYUKI
IPC分类号： E01B35/00 , G01B21/00 , G01B21/20
摘要： PURPOSE:To improve the precision of a track curve by removing a ghost waveform from the track curve by performing required arithmetic as to input measurement data of a track passage deviation or track height deviation obtained in the three- point measuring method. CONSTITUTION:From three-point measurement system 15 provided to a detecting- measuring vehicle, track deviation data DELTAY are supplied to A/D converter 16. On the other hand, sampling pulse generator 17 generates sampling pulse SP in proportion to a distance by using distance pulse DP from the detecting-measuring vehicle, A/D converter 16 samples and digitizes data DELTAY of every constant distance to obtain deviation value [DELTAY], and original-curve arithmetic circuit 18 obtains an original curve. Of the original curve, the curve part or wave component long in gradient part is eliminated by digital filter 19. To eliminate a measurement error when the vehicle body changes in direction greatly as the detecting-measuring vehicle moves, initial-value setting circuit 22 resets an initial value. Thus, the precision of the track curve can be improved.

3. 发明专利

JPS58216924A Rail stress detecting system 失效
标题翻译：铁路应力检测系统
公开(公告)号：JPS58216924A
公开(公告)日：1983-12-16
申请号：JP9917082
申请日：1982-06-11
申请人： Hitachi Electronics Eng Co Ltd , Hitachi Ltd , Japanese National Railways
发明人： KAMIYA MAKIO , SAEGUSA OSAO , FUKAZAWA YOSHIROU , YAMAMOTO YOUICHI , IWATANI FUKUO , TAKAHASHI KENSAKU , UENO YOSHIKATSU
IPC分类号： G01L1/00 , G01L5/00
CPC分类号： G01L5/0047
摘要： PURPOSE:To measure the axial tension of a rail by a magnetic anisotropic detection sensor, by averaging four peak output values accompanied by magnetic anisotropy yielded by stress, based on the output of the magnetic anisotropic sensor, and performing correction based on the temperature. CONSTITUTION:A rail axial tension detecting sensor 17 is attached to a rail. When an anisotropic sensor 8 is rotated, signals are obtained for 0 deg.-360 deg.. Four peak values are detected by a peak value detecting circuit 26. Said peak value data are sequentially added, and an average value is computed by an average value circuit 30. The corresponding rail axial tension is read from said average value by a converter 31 and displayed on a display device 32. The value of the rail axial tension is corrected by the temperature data from a thermometer 18 in a temperature correcting circuit 33 so as to obtain the value of the standard temperature. The value is compared with upper and lower limit values in a comparator 34. When the value exceeds the limit value, a signal is outputted and displayed on the display circuit 32.
摘要翻译：目的：通过磁性各向异性检测传感器测量轨道的轴向张力，通过平均四个由应力产生的磁各向异性的峰值输出值，基于磁各向异性传感器的输出，并根据温度进行校正。构成：轨道轴向张力检测传感器17附接到轨道。当各向异性传感器8旋转时，获得0度-360度的信号。峰值检测电路26检测四个峰值。所述峰值数据被依次相加，平均值由平均值相应的导轨轴向张力由转换器31从所述平均值读取并显示在显示装置32上。轨道轴向张力的值由温度校正电路33中的温度计18的温度数据进行校正以获得标准温度的值。该值与比较器34中的上限值和下限值进行比较。当该值超过限制值时，输出信号并将其显示在显示电路32上。

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