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1. 发明专利

JPS62222110A APPARATUS FOR MEASURING PASSAGE OF LONG WAVELENGTH 失效
公开(公告)号：JPS62222110A
公开(公告)日：1987-09-30
申请号：JP5252286
申请日：1986-03-12
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： TAKESHITA KUNIO , KISHIMOTO SATORU , ITO MASAYUKI , YAMADA TETSUO , SUGIMURA SHIYUUJI , TAKENAKA YASUO
IPC分类号： G01B21/00 , B61K9/08
摘要： PURPOSE:To enable measurement even during high speed running of 300km or more, by defining the distance between the perpendicular facing surface to the side surface of a rail at one point among two points of a rail surface spaced apart by a base line length from each other and the other point as passage and continuously measuring this passage. CONSTITUTION:The rail replacements (a), (b) based on a vehicle body and the angle phi of revolution of the vehicle body to the reference perpendicular surface of a gyroscope are converted into voltages by a gyro-selsyn 2' while said voltages are converted into digital values by an A/D converter 19. Subsequently, (b-a)/l (wherein l is the segment connecting two points on the side surface of a rail), the angle phi formed by the segment (l) and the long axis of the vehicle body and the angle theta formed by the segment (l) and an absolute reference perpendicular surface are respectively calculated by an operator 20, an operator 21 and an operator 22, and the direction of the perpendicular facing surface at each measuring point on the side surface of the rail is calculated by a moving average operator 25. In this case, operations are performed in synchronous relation to the distance pulse generated at every definite running distance by a pulse generator 33. The angle thetai' formed by the segment (l) and the reference perpendicular surface is calculated by an operator 26 and long wavelength passage ai=ltanthetai' is calculated by an operator 27. The passage ai is outputted as it is and, at the same time, sent to a difference operator 36 and difference DELTAai is calculated and converted into an analogue signal by a D/A converter 31 to be outputted.

2. 发明专利

JPS63177008A APPARATUS FOR MEASURING UNEVENNESS OF TREAD SURFACE OF RAIL 失效
公开(公告)号：JPS63177008A
公开(公告)日：1988-07-21
申请号：JP803987
申请日：1987-01-19
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： FUJIMORI SOJI , SATO YOSHIHIKO , MATSUMOTO KOICHI , YAMADA TETSUO , SUGIMURA AKIJI , ITO MASAYUKI
IPC分类号： G01B11/24 , E01B35/00 , G01B21/00 , G01B21/20
摘要： PURPOSE:To enhance measuring accuracy and to achieve handling convenience, by using a detector using laser beams as a reference line and measuring an interval on the basis of the change in electrostatic capacity. CONSTITUTION:A reference setting part 20 is fixed to a rail 20 and height reference laser beam 24 is set at the position definite in a height from the tread surface of the rail 1. An inspection car body 8 is constituted by mounting a gap sensor 10 detecting the height of the truck self-runnable on the rail to the tread surface of the rail, an image sensor 11 receiving the beam 24 to detect the height change quantity of the truck and a rotary encoder recording the moving distance of the truck. The output signals of the sensors 10, 11 are inputted to CPU to calculate the data of the interval between the sensor 10 and the tread surface of the rail and the positional variation data of the chasis to the beam 24 and the difference between both data is operated and outputted as a value showing the real unevenness of the tread surface of the rail. At the same time, the data signal of the angle of rotation of an axle obtained by the rotary encoder is taken in a CPU and converted to the moving distance of the chasis to be recorded.

3. 发明专利

JPS63177278A LINEAR INTERPOLATION CIRCUIT 失效
公开(公告)号：JPS63177278A
公开(公告)日：1988-07-21
申请号：JP804087
申请日：1987-01-19
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： FUJIMORI SOJI , ITO MASAYUKI , SUGIMURA AKIJI
IPC分类号： G01D3/00 , G06F17/40
摘要： PURPOSE:To interpolate a data curve having steep recesses and projections to an easy-to-see curve by originating data coincident with each other in terms of a basic point and outputting these data onto a straight line which connects the preceding sampling data value and the sampling data value of this time. CONSTITUTION:Data given from a track detection data synthesizer 2 is converted into digital signals. The preceding data already stored in a current value register 7 is transferred to a preceding value register 6 for each sampling pulse SP. Then the current data is taken in by the register 7. Then both data are inputted to an interpolation value generating circuit 8 via D/A converters 6a and 7a. A circuit 8 uses a distance pulse DP used by a track detector 1 as a timing pulse and generates the interpolation value to output it. The pulse SP reduces the number of pulses DP down to 1/n via a 1/n circuit 4. Thus the number of ns is properly secured for interpolation to obtain an easy-to-see curve.

4. 发明专利

JPH0543247B2 失效
公开(公告)号：JPH0543247B2
公开(公告)日：1993-07-01
申请号：JP803987
申请日：1987-01-19
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： FUJIMORI SOJI , SATO YOSHIHIKO , MATSUMOTO KOICHI , YAMADA TETSUO , SUGIMURA SHUJI , ITO MASAYUKI
IPC分类号： G01B11/24 , E01B35/00 , G01B21/00 , G01B21/20

5. 发明专利

JPS6343859A POSITION TRANSDUCER 失效
公开(公告)号：JPS6343859A
公开(公告)日：1988-02-24
申请号：JP18681786
申请日：1986-08-11
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： YAMAMOTO HIDEKI , KAWAKAMI SHOKICHI , KOIKE SHIGEKI , ITO MASAYUKI
IPC分类号： B61B13/06 , B60L13/03 , B60L13/06

6. 发明专利

JPS62222111A METHOD FOR MEASURING DEVIATION OF LONG WAVELENGTH TRACK 失效
公开(公告)号：JPS62222111A
公开(公告)日：1987-09-30
申请号：JP5252386
申请日：1986-03-12
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： TAKESHITA KUNIO , ITO MASAYUKI , YAMADA TETSUO , KISHIMOTO SATORU , SUGIMURA SHIYUUJI
IPC分类号： G01B21/00 , B61K9/08
摘要： PURPOSE:To enable inexpensive and safe measurement with good accuracy, by connecting two dual type vehicles and providing a relative displacement detection mechanism to the connection part. CONSTITUTION:Vehicle bodies 1, 2 connected advance in the direction shown by an arrow on a rail 3 and the up-and-down displacement between the vehicle bodies 1, 2 and the axle boxes of wheels is detected by a detector 6. A detector 7 detects up-and-down displacement from the relative displacements between the vehicle bodies 1, 2 and detectors 8-1, 8-2 mounted at an interval H in an up-and-down direction detect front-and-back displacements x1, x2. If the distance from the left end of the vehicle body 2 to the axle box 5-4 is set to lA, the distance up to the axle box of the wheel 4-5 to lB and the distances from the bottom side of the vehicle body 2 to the axle box 5-4 and the axle box of the wheel 4-5 to (c), (d), the height differences hA, hB between the extending line 9 of the bottom side of the vehicle body 1 and the bottom sides of the vehicle body 2 at the positions of the axle box 5-4 and the axle box of the wheel 4-5, height deviation (h) when wheels 4-1, 4-2, 4-4 are used and height deviation hL when wheels 4-1, 4-3, 4-5 are used can be respectively operated.

7. 发明专利

JPH0642917A APPARATUS FOR MEASURING DISPLACEMENT OF RAIL 失效
公开(公告)号：JPH0642917A
公开(公告)日：1994-02-18
申请号：JP21654492
申请日：1992-07-22
申请人： RAILWAY TECHNICAL RES INST , HITACHI ELECTR ENG
发明人： TAKESHITA KUNIO , NARITA YOSHIE , UENO YOSHIAKI , ITO MASAYUKI
IPC分类号： E01B35/06 , G01B11/00 , G01C3/06
摘要： PURPOSE:To make an optical system small in size and to simplify the maintenance work by using a laser diode(LD) as a light emitting element and a position sensing device(PSD) as a photodetecting element. CONSTITUTION:An LD is utilized as a light source 52 of a projector, which is excited by a pulse generator 51. The laser light is turned to a beam by a cylindrical lens 54 through a projecting lens 53 and directed to a rail 1. A photodetector 6 is comprised of a transmitting filter 61 which changes the wavelength of the laser light into a transmission band region, a converging lens 62 and a PSD 63. Noise components of the laser light reflected by the rail 1 are removed by the filter 61. An image is formed by the lens 62 at the photodetecting position of the PSD 63 corresponding to the potential of the rail 1. A signal processing part 7 converts the distance between an end A of the PSD and the photodetecting position (p) to the shifting amount of the rail 1 by multiplying the distance by a conversion coefficient which is preliminarily obtained from the photodetecting angle of the photodetector 6 to the rail 1 and the reducing ratio, thus outputting the data of the displacement.

8. 发明专利

JPH0642948A SYSTEM AND APPARATUS FOR MEASUREMENT OF DISORDER OF TRACK 失效
公开(公告)号：JPH0642948A
公开(公告)日：1994-02-18
申请号：JP21654392
申请日：1992-07-22
申请人： RAILWAY TECHNICAL RES INST , HITACHI ELECTR ENG
发明人： TAKESHITA KUNIO , KISHIMOTO SATORU , KIMURA TOSHIHIRO , UENO YOSHIAKI , ITO MASAYUKI
IPC分类号： E01B35/00 , G01B21/00
摘要： PURPOSE:To measure a disorder amount for a rail in the same manner as a three-point simultaneous measurement by a method wherein data obtained by performing a two- point simultaneous measurement two times are compared and an angle change amount for a reference line is detected and corrected by a gyro. CONSTITUTION:Two displacement sensors 5-1, 5-2 are installed on a testing vehicle at an interval of a distance of L/2, and a vehicle body is used as reference lines B1, B2. Arbitray points, on a rail, corresponding to the individual displacement sensors are designated as measuring points (p), (r), a point (q) is decided, and a straight line (p) (q) is made to correspond to the length L of a measuring chord G. First, displacement amounts a0, b0 for the points (p), (r) with reference to the reference line B1 are measured simultaneously by both sensors 5-1, 5-2. Then, when the testing vehicle travels a distance of L/2, displacement amounts a1, b1 for the points (r), (q) with reference to the reference line B2 are measured simultaneously by both sensors 5-1, 5-2. On the other hand, a change angle DELTAtheta for the reference lines B1, B2 due to the turn of the vehicle body is detected by a gyro. A disorder amount is a displacement amount DELTAS for the point (r) with reference to the measuring chord G, and can be computed and found using the equation shown.

9. 发明专利

DE3508337A1 Device for the electromagnetic measurement of a load 未知
公开(公告)号：DE3508337A1
公开(公告)日：1985-11-21
申请号：DE3508337
申请日：1985-03-08
申请人： JAPAN NATIONAL RAILWAY , HITACHI ELECTR ENG , HITACHI LTD
发明人： KASHIWAYA KENJI , TAKESHITA KUNIO , ONO TOSHIYUKI , ITO MASAYUKI , SUGIMURA AKIJI , YAMADA TETSUO
IPC分类号： G01L1/00 , G01L1/12 , G01L3/10 , G01N27/82 , G01R33/12
摘要： Device for the electromagnetic measurement of a load, in which the load is measured in a magnetic component by detecting a magnetic anisotropy of the component, which is based on the fact that the magnetism of the component is altered by the magnetostrictive effect when the load occurs in the component. This device has measuring heads which are used to form a magnetic circuit to detect the magnetic anisotropy by direct contact with the component and are in the form of end sections of magnet cores of two excitation windings and a measuring winding or of an excitation coil and two measuring windings. The end sections are constructed in the shape of a hemisphere.

10. 发明专利

JPH08275302A COLLECTING CONTACT STRIP IN WHICH CONTACT STRIP MAIN BODY HAS HIGH TOUGHNESS AND HIGH CONDUCTIVITY 失效
公开(公告)号：JPH08275302A
公开(公告)日：1996-10-18
申请号：JP10001695
申请日：1995-03-31
申请人： RAILWAY TECHNICAL RES INST , MITSUBISHI MATERIALS CORP , TOYO TANSO CO
发明人： KUBO SHUNICHI , TSUCHIYA HIROSHI , IKEUCHI SANEJI , KOIKE MASASHI , TERAOKA TOSHIO , ONISHI YOSHIHISA , ITO MASAYUKI
IPC分类号： C04B35/52 , B60L5/00
摘要： PURPOSE: To obtain high toughness and high conductivity by forming the contact main body of a collecting contact strip of a sintered body of copper-impregnated carbon. CONSTITUTION: The contact strip main body 1 of a collecting contact strip is made into a shape which has a bottom-surface center groove 1a for a clearance for the head part of a shoe mounting bolt 3 in the central part of the direction of the length of a bottom surface and also has a sheath-mounting side surface groove 1b along the direction of the length in both respective side surfaces. The contact strip main body 1 is composed of a copper-impregnated carbon sintered body in which a carbon fine reinforcement carbon sintered body having a porosity of 18 to 27% is impregnated with copper or a copper alloy, and the copper-impregnated carbon sintered body has such a characteristic that flexural strength is not less than 1100kgf/cm , Charpy impact value is not less than 4kgf-cm/cm and specific resistance is not more than 400μΩ-cm, thereby being able to obtain a collecting contact strip having excellent toughness and conductivity.

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