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1. 发明专利

JP2002098724A RESISTANCE MEASURING METHOD ACROSS RAIL JOINT AND ITS DEVICE 失效
公开(公告)号：JP2002098724A
公开(公告)日：2002-04-05
申请号：JP2000290415
申请日：2000-09-25
申请人： HIOKI ELECTRIC WORKS , HIGASHI NIPPON RYOKAKU TETSUDO , KAWATETSU TECHNO RES KK
发明人： KOBAYASHI KENJI , NAITO FUJIO , ITO TETSUYA , KANARI SHOHEI
IPC分类号： G01R27/16 , G01R27/02
摘要： PROBLEM TO BE SOLVED: To measure stably a resistance across a rail joint connected by a joint plate having a function equal to a rail bond without being influenced by a track current and a return wire current, and to convert automatically a measured alternating-current resistance value into a direct-current resistance value. SOLUTION: In measurement of the resistance existing across the joint of rails R1, R2 having electric conduction by the joint plate J having the function equal to the rail bond, an effective resistance value ACR in an alternating- current impedance across the joint of the rails is detected by an alternating- current four-terminal method, and thereafter the ACR is converted into a DCR by an equation; DCR=(ACR-β)/α [α; conversion coefficient characteristic to the rail, β; correction value (Ω) of the joint plate having the function equal to the rail bond, DCR; direct-current resistance value].

2. 发明专利

JPH0769698A QUICK CURING CEMENT BITUMINOUS GROUTING MATERIAL FOR RAILROAD AND INSTALLATION THEREOF 失效
公开(公告)号：JPH0769698A
公开(公告)日：1995-03-14
申请号：JP18719092
申请日：1992-07-15
申请人： HIGASHI NIPPON RYOKAKU TETSUDO , RAILWAY TECHNICAL RES INST , TOA DORO KOGYO KK , DENKI KAGAKU KOGYO KK , NIPPON SOGO BOSUI KK
发明人： HAYAKAWA MAKOTO , KOSEKI MASANOBU , MIURA SHIGERU , ANDO KATSUTOSHI , HARADA YUTAKA , KOBAYASHI KENJI , HIRANO KENKICHI , MATSUMOTO MASAO , TOKORO TAKEHIKO , TAKAHASHI NORIO
IPC分类号： B28C5/02 , C04B28/02 , C04B40/00 , C04B111/70 , C09K17/34 , C09K17/48 , C09K103/00
摘要： PURPOSE:To efficiently provide homogeneously cured body by long-distance forcible feeding by mixing a rapid setting admixture formed by compounding inorg. fine powder contg. siliceous component with a compd., such as calcium aluminate and cement and fine aggregate, etc. CONSTITUTION:A cement bituminous mortar A liquid is obtd. by mixing water, defoaming agent and setting control agent, adding a bituminous emulsion and high-polymer emulsion to the mixture, compounding ordinary cement, sand and aluminum powder therewith and kneading the mixture by a mixer. A quick curing slurry B liquid is then obtd. by mixing the water and the curing control agent, adding the quick curing admixture to the mixture and kneading the mixture by the mixer. The resultant liquids A, B are fed to a grouting site by forcible feeding pumps A, B of respectively separate systems. The front ends of hoses for the liquids A, B are then connected to a continuous mixer and the liquids are kneaded, by which the quick curing cement bituminous grouting material for railways is produced. This grouting material is poured into ballast via a grouting funnel, by which the packing installation is executed.

3. 发明专利

JPH09227194A CEMENT-BITUMEN GROUTING MATERIAL FOR RAILROAD 失效
公开(公告)号：JPH09227194A
公开(公告)日：1997-09-02
申请号：JP3239796
申请日：1996-02-20
申请人： HIGASHI NIPPON RYOKAKU TETSUDO , TOA DORO KOGYO KK
发明人： HAYAKAWA MAKOTO , HARADA YUTAKA , KOBAYASHI KENJI
IPC分类号： E01B13/00 , C04B28/02 , C04B103/10 , C04B103/12 , C04B103/20 , C04B103/22 , C04B103/50 , C04B103/60 , C04B111/34
摘要： PROBLEM TO BE SOLVED: To obtain good construction workability and satisfactory development of strength for both of the newly-laying railway and the existing railway by using different and more suitable setting modifiers separately in the grouting material of cement-bitumen for new and existing railways on high-temperature construction execution work for railways. SOLUTION: In a cement-bitumen grouting material on high-temperature execution work for railways, different additives are separately used for the newly laying railway (1) and the already laid railway (2), as will be described below. (1) For the newly laying railway, an inorganic fine powder mainly comprising a normally hardening calcium sulfoaluminate as a shrinkage- compensating admixture and, as a setting modifier, is used a formulation mainly comprising a modified methylol-melamine condensate and a modified lignin of delayed high-performance water reducing agent. (2) For the existing railways, an inorganic fine powder mainly comprising a formulation of a quick hardening calcium aluminate and gypsum and a silica component is used as a shrink- compensating admixture and a combination of a formulation of inorganic salts and organic acids with a delayed high-performance water reducing agent used in (1) is used as a setting modifier.

4. 发明专利

JPH06108401A METHOD OF BALLAST STABILIZING CONSTRUCTION OF LOWER SECTION OF LABOR-SAVING TRACK 失效
公开(公告)号：JPH06108401A
公开(公告)日：1994-04-19
申请号：JP25172892
申请日：1992-09-21
申请人： RAILWAY TECHNICAL RES INST , TOA DORO KOGYO KK , DENKI KAGAKU KOGYO KK , HIGASHI NIPPON RYOKAKU TETSUDO
发明人： MIURA SHIGERU , ANDO KATSUTOSHI , HORIIKE TAKAHIRO , HARADA YUTAKA , KOBAYASHI KENJI , MATSUMOTO MASAO , KIDA TSUTOMU
IPC分类号： E01B1/00
摘要： PURPOSE:To prevent the irregularity of a track by scattering or impregnating a stabilizing material such as a cement group grout material, a bituminous emulsifier, a cement bituminous grout material or the like to ballast just under the packed layer of the labor-saving track. CONSTITUTION:An impregnating pipe 7 is disposed into ballast 5 just under a packed layer 3 mounted to an existing-line labor-saving track. A cement grout material, in which a high-molecular emulsion is mixed into cement mortar, etc., is infiltrated into the ballast 5 through the holes 8 of the impregnating pipe 7 from an impregnating funnel 9. A bituminous emulsion or a cement bituminous emulsion can be used in place of the cement grout material.

5. 发明专利

JP2002168899A CABLE INSPECTION METHOD AND CABLE INSPECTION DEVICE 失效
公开(公告)号：JP2002168899A
公开(公告)日：2002-06-14
申请号：JP2000362383
申请日：2000-11-29
申请人： HIOKI ELECTRIC WORKS
发明人： KOBAYASHI KENJI
IPC分类号： G01R31/02
摘要： PROBLEM TO BE SOLVED: To inspect failure and short circuit of a plurality of cables in a short time. SOLUTION: In an inspection method of failure and short circuit of cable bundle X bundling cables X1 to XN, one end of Mth (M is each odd number from 1 to (N-1)) cable and one end of (M+1)th cable are connected by way of a constant voltage maintaining means D1 for maintaining the voltage between the input and the output at constant. The other end of Lth (L is even number from 2 to (N-1)) cable and the other end of the (L+1)th cable are connected via a constant voltage maintaining means D2. To the other end of the first cable, positive output terminal of the constant current source 11 is connected, and to the open side end of the Nth cable, a negative output terminal of the constant current source 11 is connected. Constant current I1 for inspection is output and cable failure is judged when the voltage of the other end of the first cable exceeds a reference voltage VR0. When either of each voltage of the other end of the cables lowers the reference voltage VR1 to VR(N-1), a short circuit is judged.

6. 发明专利

JP2001153903A METHOD AND APPARATUS FOR MEASURING RESISTANCE 失效
公开(公告)号：JP2001153903A
公开(公告)日：2001-06-08
申请号：JP33979899
申请日：1999-11-30
申请人： HIOKI ELECTRIC WORKS
发明人： MURAYAMA RINTARO , KOBAYASHI KENJI , UEHARA SATOSHI
IPC分类号： G01K7/18 , G01R27/02
摘要： PROBLEM TO BE SOLVED: To simply and certainly exclude influence of thermoelectromotive force, when the resistance value of a resistor to be measured is measured by a four-terminal method. SOLUTION: As the first measurement, constant current I is caused to flow from a constant DC source 10 to the resistor X to be measured from its first lead L1 side toward the second lead L2 side, and voltage Va generated then in the resistor X is measured. Next, as the second measurement, the constant current I is caused to flow reversely to the resistor X this time, from the second lead L2 side toward the first lead L1 side. After voltage Vb generated then in the resistor X is measured, the average voltage Vc of the voltage Va and the voltage Vb is computed, and from this average voltage Vc and the constant current I the resistance value of the resistor X is found.

7. 发明专利

JPH05119086A HIGH-SPEED RESISTANCE MEASURING INSTRUMENT 失效
公开(公告)号：JPH05119086A
公开(公告)日：1993-05-14
申请号：JP30689891
申请日：1991-10-25
申请人： HIOKI ELECTRIC WORKS
发明人： NAITO FUJIO , MIZUNO ATSUSHI , KOBAYASHI KENJI
IPC分类号： G01R27/14 , G01R19/25 , G01R27/02
摘要： PURPOSE:To obtain a high-speed resistance measuring instrument which can accurately measure the resistance value of an object to be measured in a short time and is suitable for automatic measurement. CONSTITUTION:In a resistance measuring instrument which converts the voltage Vx generated across an object 22 to be measured when a constant current Ix is made to flow to the object 22 into a digital signal S1 and displays the resistance value Rx of the object 22 after calculating the value Rx from the signal S1, a detector 34 which detects the connection of the object 22 and sends a hold canceling signal S2 when the object 22 is connected and a delay circuit 36 which delays the signal S2 when the signal is conveyed to a CPU 40 are incorporated. In addition, a hold inputting means 52 which gives a hold signal S4 for stopping operations to an A/D converter 26 when a hold requesting signal S3 is inputted to the CPU 40 and starting means 50 which gives a start signal for starting operations to the converter 26 when the hold canceling signal S2 is inputted to the CPU 40 are also provided as an arithmetic and control means 28 incorporating the CPU 40.

8. 发明专利

JP2002228681A INTERPOSING PIECE FOR MEASUREMENT AND CONTACT STRUCTURE OF PROBE FOR ELECTRONIC MEASUREMENT WITH MEASURED BODY 失效
公开(公告)号：JP2002228681A
公开(公告)日：2002-08-14
申请号：JP2001025754
申请日：2001-02-01
申请人： HIOKI ELECTRIC WORKS
发明人： KOBAYASHI KENJI
IPC分类号： G01R1/06 , G01R1/067 , G01R31/02
摘要： PROBLEM TO BE SOLVED: To provide an interposing piece for measurement and a contact structure of a probe for electronic measurement with a body to be measured which can obtain a stable measured value by making the contact resistance small. SOLUTION: This contact structure is composed of the probe 11 for electric measurement which is equipped with a contact 12 arranged freely movably forward and backward with a pressing force and the interposing piece 21 for measurement which is interposed between the contact 12 and the body 31 to be measured, and the probe 11 is equipped with a magnet part 14 attached in the forward/backward movement direction of the contact 12, which is arranged so as to surely obtain an electric contact having a small contact resistance with the body 31 to be measured across the interposing piece 21 for measurement magnetized through an open end surface 15 of the magnet part 14.

9. 发明专利

JPH06249890A RIPPLE VOLTAGE MEASURING DEVICE 失效
公开(公告)号：JPH06249890A
公开(公告)日：1994-09-09
申请号：JP5771993
申请日：1993-02-23
申请人： HIOKI ELECTRIC WORKS
发明人： TAGUCHI MASAAKI , KOBAYASHI KENJI
IPC分类号： G01R19/00 , G01R29/00
摘要： PURPOSE:To facilitate the set of a noise separating standard voltage in a ripple voltage measuring device. CONSTITUTION:A ripple voltage measuring device is provided with a voltage comparing circuit 11 for comparing a voltage Vin to be measured and a noise separating standard voltage Vs1 for separating spike noise; a voltage comparing circuit 12 for comparing the voltage Vin to be measured with a ground potential; a logical product circuit 13 for inputting the output of the voltage comparing circuit 11 and the reversed output of the voltage comparing circuit 12; an integrating circuit 15 for integrating the output voltage of the logical product circuit 13; an integrating circuit 16 for integrating the reversed output of the voltage comparing circuit 12; and an integration control means for synchronously controlling the integrating operations of the integrating circuits 15, 16. This device is further provided with a standard voltage generating circuit 17 for dividing the output of the integrating circuit 16 in a determined potential dividing ratio and comparing the divided voltage with the output of the integrating circuit 15 to generate a noise separating standard voltage; and an arithmetic means CPU19 for determining the wave height value of a ripple voltage in which spike noise is separated from the input voltage Vin to be measured by each output voltage V1, V2 of the integrating circuits 15, 16 and the noise separating standard voltage Vs1.

10. 发明专利

JP2003223918A RESISTANCE MEASUREMENT EQUIPMENT AND DIAGNOSTIC EQUIPMENT 审中-公开
公开(公告)号：JP2003223918A
公开(公告)日：2003-08-08
申请号：JP2002022730
申请日：2002-01-31
申请人： HIOKI ELECTRIC WORKS
发明人： KOBAYASHI KENJI
IPC分类号： G01R27/02 , G01R31/00 , H01M8/04 , H01M8/10
摘要： PROBLEM TO BE SOLVED: To provide resistance measurement equipment which can measure effective resistance of a fuel cell efficiently in a short time. SOLUTION: The diagnostic equipment 1, which measures the effective resistance of the fuel cell BT, has a signal generation section 11 that generates signals for measurement including a 1st alternate current signal for measurement for measuring membrane resistance, which forms a part of the effective resistance, and a 2nd alternate current signal for measurement for measuring a reaction resistance, which forms a part of the effective resistance, and has a measurement section 12 that obtains a resistance value of the membrane resistance based on a current value of the 1st alternate current signal for measurement flowing in the membrane resistance in a state where the signal for measurement is impressed on the fuel cell BT, and voltage which is generated in the membrane, and also obtains the resistance value of the reaction resistance based on the current value of the 2nd alternate current signal for measurement flowing in the reaction resistance, and the voltage which is generated in the reaction resistance. COPYRIGHT: (C)2003,JPO

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