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1. 发明专利

JPS60246902A PATH MEASURING APPARATUS 失效
公开(公告)号：JPS60246902A
公开(公告)日：1985-12-06
申请号：JP9867384
申请日：1984-05-18
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： KOBAYASHI SENJI , TAKESHITA KUNIO , EMORI EIJI , KISHIMOTO SATORU , UENO YOSHIAKI , ITOU MASAYUKI
IPC分类号： E01B35/00 , E01B35/02 , G01B21/00 , G01B21/20

2. 发明专利

JPS56157803A DETECTING AND MEASURING APPARATUS OF TRACK 失效
公开(公告)号：JPS56157803A
公开(公告)日：1981-12-05
申请号：JP6055180
申请日：1980-05-09
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： TAKESHITA KUNIO , MATSUMOTO TSUNEKAZU , UENO YOSHIAKI , OOYA RIYOUICHI , ITOU MASAYUKI
IPC分类号： E01B35/06 , G01B11/00
摘要： PURPOSE:To detect the displacement of an object to be measured, by irradiating said object with a sharp strip-shaped laser beam longitudinally converged by means of a cylindrical lens, and picking up the reflected light by means of a scanning type image pickup camera to obtain the positional displacement of the picture. CONSTITUTION:From a laser oscillator 16 through a lens 17 and a cylindrical lens 17A, a laser beam is applied so as to form a light strip 18 which is narrow in the longitudinal direction (z) of an angle 5 along the track and elongated in the directions of two sides (x) and (y). The light strip 18 is picked up by means of a scanning line type camera 19 to obtain a picture 18B. The angle theta between the light-projecting axis and the optical axis of the camera and the inclination thereof are regulated so that the X and Y directions of the picture 18B correspond to the horizontal and vertical directions on the picture-receiving screen. At first, the whole frame is scanned to obtain a pulse generating position. Then, only the vicinity thereof is scanned a small number of times in order to reduce the measuring time. The maximum signal is detected in a picture detecting part 21, the position coordinates are obtained in a signal processing part 22 and converted into analog quantities in a D/A conerter 23, and the coordinate displacement of the object being measured is obtained in a coordinate converting part 24. Thereby, the change in position of the object to be measured can be obtained.

3. 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.

4. 发明专利

JPS60243526A APPARATUS FOR MEASURING AXIAL FORCE OF RAIL 失效
公开(公告)号：JPS60243526A
公开(公告)日：1985-12-03
申请号：JP9867284
申请日：1984-05-18
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： KASHIWATANI KENJI , TAKESHITA KUNIO , ONO TOSHIYUKI , ITOU MASAYUKI , SUGIMURA SHIYUUJI
IPC分类号： G01L1/00 , G01L1/12 , G01L3/10 , G01N27/82 , G01R33/12
摘要： PURPOSE:To make it possible to measure the stress in the axial direction of a rail, by differentially connecting magnetic anisotropy detecting coils so that disturbance magnetic fields are offset. CONSTITUTION:Detecting coils 17-1 and 17-2 of one magnetic anisotropy sensor 15-1 are cumulatively connected. Detecting coils 19-1 and 19-2 of another magnetic anisotropy sensor 15-2 are similarly connected. When the sensors 15-1 and 15-2 are arranged at an equal angle with respect to a rail, the voltages, caused by disturbance magnetic fluxes, which are induced in the detecting coils 17-1 and 17-2 and 19-1 and 19-2, become equal. When the coils 17-1 and 17-2 and 19-1 and 19-2 are differentially connected, the voltages are offset, and no output appears across output terminals 12. When exciting coils 18-1 and 18-2 are connected out of phase, the signal voltages, which are induced in the detecting coils 19- 1 and 19-2 become out of phase. Since the detecting coils 19-1 and 19-2 and 17-1 and 17-2 are differentially connected, the signals are added, i.e., the result is the twice the original voltage. Therefore, the detected signal of the degree of magnetization of the rail by the exciting coils of the sensors themselves becomes twice the original value. The disturbances are offset, and the proper signal can be positively detected.

5. 发明专利

JPS58213903A Apparatus for detecting rail axis strength 失效
标题翻译：检测铁路轴强度的装置
公开(公告)号：JPS58213903A
公开(公告)日：1983-12-13
申请号：JP9496782
申请日：1982-06-04
申请人： Japan National Railway , Hitachi Ltd , Hitachi Electr Eng
发明人： SAEGUSA OSAO , IEDA HITOSHI , YAMAMOTO YOUICHI , SUGIYAMA TOORU , ITOU MAKOTO , KISHIMOTO SATORU , TAKAHASHI KENSAKU , ITOU MASAYUKI
IPC分类号： E01B35/00 , G01L1/00

6. 发明专利

JPS53142711A RECORD CONTROLLER OF TRACK CHECK AND MEASURING CAR 失效
公开(公告)号：JPS53142711A
公开(公告)日：1978-12-12
申请号：JP5636977
申请日：1977-05-18
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： KAJIKAWA OSAMU , KUBO SUSUMU , FURUKAWA ISAO , KURIMOTO MASAHARU , UENO YOSHIAKI , ITOU MASAYUKI
IPC分类号： G01C22/00 , B60L3/00 , B60L3/12 , B61K9/00 , B61K9/08 , B61L3/02 , B61L23/00 , G01C23/00
摘要： PURPOSE:To accurately record data concerning points to be measured and to allow computer treatment, by correcting distance pulse by means of the revolution of an axle in response to the diameter of a wheel, and by further correcting it by means of a fixed kilometer distance signal.

7. 发明专利

JPS60252207A MEASURING INSTRUMENT OF SHAPE OF RAIL TOP SURFACE 失效
公开(公告)号：JPS60252207A
公开(公告)日：1985-12-12
申请号：JP10838884
申请日：1984-05-30
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： SATOU YOSHIHIKO , FUJIMORI SOUJI , TAKESHITA KUNIO , KISHIMOTO SATORU , ITOU MASAYUKI , SUGIMURA SHIYUUJI
IPC分类号： G01B21/00 , G01B5/20 , G01B7/00 , G01B21/20
摘要： PURPOSE:To measure the shape of a rail top surface with a high precision without being influenced by the inertia or the like of a measuring vehicle by providing the measuring vehicle with a noncontacting gap sensor and running it on the rail to detect the gap and upward and downward accelerations. CONSTITUTION:Wheels 2 are attached to a frame 3 of the lightweight measuring vehicle, and the measuring vehicle is run on a rail 1a. The frame 3 is provided with an attaching plate 9, and a noncontacting gap sensor 11 and an upward and downward accelerometer 12 are attached. The gap sensor 11 is allowed to face the rail 1a to measure the gap. When the reference face of the rail 1a is defined as B at this time, the gap sensor 11 is placed at a height H, and the height H is subtracted from the measured value to obtain a result corresponding to the gap from the rail top surface. Though upward and downward accelerations of the measuring vehicle are changed by the inertia and the natural frequency of the frame, wheels, etc., upward and downward displacement is integrated twice to approximate it to actual displacement. Consequently, since the gap displacement of the gap sensor 11 is compensated by upward and downward displacement of the upward and downward accelerometer, measurement is performed without being influenced by the measuring vehicle neither the wear of the rail.

8. 发明专利

JPS6053862A MAGNETIC ANISOTROPY SENSOR 失效
公开(公告)号：JPS6053862A
公开(公告)日：1985-03-27
申请号：JP16185483
申请日：1983-09-05
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： NAITOU TOSHIO , TSUNODA TAKEO , ITOU MASAYUKI , UENO YOSHIAKI
IPC分类号： G01N27/72 , G01R33/12
摘要： PURPOSE:To make it possible to inspect magnetic anisotropy from above through a coating, by respectively winding detection coils around the intermediate and end parts of the roots of adjacent comb tooth shaped parts, and allowing the inequality in output electromotive force to appear only in the detection coil in the vicinity of a place where magnetic anisotropy is different from that of the peripheral other part. CONSTITUTION:Lines of magnetic force 8 are excited in iron plates 1, 2 welded by plug welding parts 6 and a magnetic field passing the magnetic core of a sensor by exciting coils 4 and voltage signals are induced in detection coils 5 in proportion to the intensity of said lines of magnetic force 8. These voltage signal are set off with each other because magnetic permeabilities are equal between mutually adjacent magnetic cores when the plane arrangement of the end parts of the comb shaped tooth parts of the magnetic core of the sensor is a straight form and come to zero but, when the comb tooth shaped parts of the magnetic core are arranged in a zigzag pattern at the end parts thereof contacted with a magnetic material to be inspected, that is, the iron plate 1 as shown by numerals 3a-3n in the drawing, the magnetic permeabilities between the magnetic core end parts adjacent to each other becomes non-equilibrium by the magnetic anisotropy present in the iron plate 1 and voltage signals are induced in the detection coils 5 and the plung welding parts 6 can be detected because there is magnetic anisotroy with the parts of the iron plates 1, 2 in said plug welding parts 6.

9. 发明专利

JPS5882103A DEVICE FOR MEASURING MISALIGNED RAIL 失效
公开(公告)号：JPS5882103A
公开(公告)日：1983-05-17
申请号：JP14101281
申请日：1981-09-09
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： KAMIYA MAKIO , TAKINO YUKIO , SAEGUSA OSAO , KISHIMOTO SATORU , TAKESHITA KUNIO , IWATANI FUKUO , ITOU MAKOTO , ITOU MASAYUKI
IPC分类号： B61K9/08 , E01B35/00 , G01B7/00 , G01B7/28 , G01B7/305 , G01B7/34
摘要： PURPOSE:To improve accuracy, of the titled measuring, by detecting and measuring the displacement in right and left directions and change in height based on an eddy current effect, correcting the measured value of the right and left displacements by the height data, thereafter performing the second stage correction by said corrected value and the height data. CONSTITUTION:A signal voltage (v) with regard to a displacement (x) at a height (y) is obtained as an output of a differential amplifier 23 based on the eddy current effects of (x) displacement coils 4a and 4b. Meanwhile, a signal voltage based on the eddy current effect of a (y) displacement coil 8 passes a height operating circuit 24 and a correcting coefficient circuit 25. The result is multiplied by the signal voltage (v) in an analog multilier 26. The corrected right and left displacement values and the height displacement value are converted into the digtal values by A/D converters 27a and 27b. Then, addresses in an ROM are specified. Then, the second stage correction is performed, and the correct displacement amount at the specified address is obtained. In this way, the measurement can be performed without the effect of snow-fall.

10. 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.

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