Wall thickness measuring system of large diameter pipe

    公开(公告)号:JP2004144710A

    公开(公告)日:2004-05-20

    申请号:JP2002312588

    申请日:2002-10-28

    Abstract: PROBLEM TO BE SOLVED: To provide a wall thickness measuring system of a large diameter pipe wherein no laying out of a scaffold is required for measurement, and a corrosion on the outside surface is accurately and efficiently understood, with no burden on a worker.
    SOLUTION: A master truck 14 comprises running wheels 11a-11d having driven tires of soft material and travels on an inside surface 13 of a large diameter pipe 12. Magnets 15 and 16 are fixed to the bottom part of the truck 14 and have such magnetic force as can fix the truck 14 to an arbitrary position on the inner surface of the large diameter pipe 12. Four or more slave trucks 17-22 are arranged in two lines and in zigzag in the advancing direction of the master truck 14, being so provided to the master truck 14 for vertical movement and swinging back and forth while energized to the large diameter pipe 12 at always, with four small wheels 69-69d provided looking in the same direction as the master truck 14. A range finder 26 measures a travel distance of the master truck 14. A multi-channel type ultrasonic controller 24 actuates an ultrasonic sensor 23 at the same time. A display device 118 displays a measuring result of wall thickness.
    COPYRIGHT: (C)2004,JPO

    Magnetic material bent part rupture inspection method and inspection device

    公开(公告)号:JP2004053496A

    公开(公告)日:2004-02-19

    申请号:JP2002213357

    申请日:2002-07-23

    Abstract: PROBLEM TO BE SOLVED: To provide a magnetic material bent part rupture inspection method and a magnetic material bent part rupture inspection device capable of detecting rupture at a bent part of a magnetic material at low cost by a nondestructive procedure. SOLUTION: The rupture at the bent part Sc of a long cylindrical magnetic material S2 covered with a covering body C is inspected. A detection head 10 for detecting a magnetic flux change caused by excitation of an excitation core is provided near a pair of ends 11a, 11b of the excitation core. The pair of ends 11a, 11b of the excitation core are oriented along the longitudinal direction of the magnetic material, and the excitation core is excited and simultaneously moved in the far-and-near direction relative to the bent part Sc together with the detection head 10. The rupture is inspected from a detection result of the magnetic flux change by using the detection head 10 near the bent part Sc caused by the movement. COPYRIGHT: (C)2004,JPO

    Measuring method of deposit on inside face of pipe

    公开(公告)号:JP2004028803A

    公开(公告)日:2004-01-29

    申请号:JP2002185684

    申请日:2002-06-26

    Abstract: PROBLEM TO BE SOLVED: To provide a measuring method of deposits on an inside face of a pipe enabling easy, sure measurement of contaminants having a thickness of not more than 1 cm and adhering on the inside face of the pipe witha small error.
    SOLUTION: The measuring method of measuring the deposits on the inside face of thepipe for measuring presence/absence of the deposits on the inside face of the pipe or a thickness of a deposition layer having a thickness of 1-10 mm comprises the steps of bringing a pair of probes 2 connected to an ultrasonic oscillator and arranged with a specified distance near to a wall face 4 of the pipe as an object of measurement, transmitting and receiving an ultrasonic wave between the probes to propagate a plate wave (Lamb wave) 6 to the wall face 4 and comparing a wave form of the ultrasonic wave received by the probe 2 with a reference wave form received in either a deposit-present/absent state or a state with the deposit layer having a known thickness.
    COPYRIGHT: (C)2004,JPO

    Apparatus and method for inspecting pipe
    55.
    发明专利
    Apparatus and method for inspecting pipe 审中-公开
    检查管道的装置和方法

    公开(公告)号:JP2003270223A

    公开(公告)日:2003-09-25

    申请号:JP2002074114

    申请日:2002-03-18

    CPC classification number: G01N2291/044

    Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for inspecting a pipe being easy to be installed and scanning along a circumferential direction of the pipe while surely maintaining a contact state between a probe and the surface of the pipe.
    SOLUTION: The apparatus comprises a probe 3, a carriage 5 supporting the probe 3, a moving mechanism for the probe 3 with respect to the axial direction X of the pipe S, a pair of chains 4 wound around the circumference of the pipe S, a pair of traveling wheels 11, 12 disposed in the carriage 5 spaced apart in the circumferential direction Y of the pipe, and tension wheels 13, 13 disposed between the pair of traveling wheels 11, 12. The chain 4 is put around the traveling wheels 11, 12 and the tension wheels 13, while the tension wheels 13 are separated from the pair of traveling wheels 11, 12 to provide the chain 4 with tension, by which the chains 4, 4 and the probe 3 are pressed against the surface of the pipe S. The wheels also serve as driving sprockets in the circumferential direction Y of the pipe.
    COPYRIGHT: (C)2003,JPO

    Abstract translation: 要解决的问题:提供一种用于检查沿着管的圆周方向易于安装和扫描的管的装置和方法,同时确保保持探针与管表面之间的接触状态。 解决方案:该装置包括探针3,支撑探针3的托架5,相对于管S的轴向X的探头3的移动机构,围绕管S的圆周卷绕的一对链条4 管S,设置在托架5中的沿管道的周向Y间隔开的一对行进轮11,12,以及设置在该对行进轮11,12之间的张紧轮13,13。 行星轮11,12和张力轮13,同时张紧轮13与一对行进轮11,12分离,以使链条4具有张力,链4,4和探针3通过该张紧被压靠在其上 管道S的表面。轮子也用作管道圆周方向Y上的驱动链轮。 版权所有(C)2003,JPO

    補修用装置及びそれを用いた補修方法

    公开(公告)号:JP2021017764A

    公开(公告)日:2021-02-15

    申请号:JP2019134679

    申请日:2019-07-22

    Abstract: 【課題】 垂直の壁面も安定して走行しながら補修できるとともに、補修対象を自らの装置で邪魔することなく、壁面のどのような補修箇所もピンポイントで補修可能であり、補修時には、補修材が下方に垂れるのを防止でき、補修した補修箇所の検出及び記録が可能な補修用装置及びそれを用いた補修方法を提供する。 【解決手段】 構造物の表面を移動可能な移動体ユニットと補修ユニットからなる補修用装置であって、補修ユニットは、制御部と補修部を備えており、制御部は、少なくとも電源ユニットと、制御用コンピュータと、補修材供給ユニットを有し、前記補修部は、構造物の表面を視認させるためのカメラと、補修材吐出ノズルと、塗布機構とを備えた塗布ユニットと、該塗布ユニットを構造物の表面に対してX軸、Y軸、Z軸方向に移動させるための塗布ユニット駆動機構を有し、塗布ユニット駆動機構は、移動体ユニットの移動時の進行方向に対して左右何れかの側部に設けられている。 【選択図】図1

    外壁の内部の検査方法
    59.
    发明专利

    公开(公告)号:JP2020159890A

    公开(公告)日:2020-10-01

    申请号:JP2019060162

    申请日:2019-03-27

    Abstract: 【課題】建物の外壁の内部の状態を、当該外壁を傷つけることなく調べることができる検査方法を提供する。 【解決手段】外壁パネル1よりも屋内側に、X線発生器2を、外壁パネル1内の被検査部に向けてX線を照射可能に配置する第一配置工程(ステップS11)と、外壁パネル1よりも屋外側に、X線フィルム3を、X線発生器2から前記被検査部に向けて照射されたX線を検出可能に配置する第二配置工程(ステップS12)と、X線発生器2から前記被検査部に向けてX線を照射させるX線照射工程(ステップS13)と、を具備する。 【選択図】図1

    接合部材の検査装置及び検査方法

    公开(公告)号:JP2019211281A

    公开(公告)日:2019-12-12

    申请号:JP2018106118

    申请日:2018-06-01

    Abstract: 【課題】 簡便且つ精度よく接合部材の軸部と頭部との境界部の割れの有無を判定することの可能な接合部材の検査装置及び検査方法をを提供すること。 【解決手段】 接合部材100は、被接合部材を貫通する軸部102と、軸部102よりも大径で且つ被接合部材の表面から突出する頭部101Aとを有する。頭部101Aは、外面の少なくとも一部に一定の曲率形状となる湾曲面部103を有する。探触子2は、湾曲面部103に略一致する走査面23を備えた楔部材21に取り付けられてある。探触子2は、楔部材21を介して頭部101Aへ超音波を入射させて接合部材100に横波PS及び縦波PLを伝搬させると共に湾曲面部103に沿って走査される。信号処理部は、受信した反射波の内の横波の反射波に基づいて軸部102と頭部101Aとの境界部104Aの割れD1の有無を判定する。 【選択図】 図4

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