公开(公告)号：KR100395205B1

公开(公告)日：2003-08-21

申请号：KR1020010030852

申请日：2001-06-01

Applicant: 고등기술연구원연구조합

Inventor： 정진오 ,  김형진

IPC: G01M3/00

Abstract: PURPOSE: An underground metal pipe inspection apparatus is provided to reduce noise of obtained signal and achieve improved accuracy of inspection, by allowing the axis forming centers of an exciter and a detector to be coaxial with the internal central axis of the pipe. CONSTITUTION: An underground metal pipe inspection apparatus, comprises an amplifier power module(100) having a housing(110) and a battery mounted within the housing; a flexible unit(200) arranged into a predetermined length, at both sides of the amplifier power module, which is bent or stretched in accordance with the bending direction of the pipe; an exciter module(300) having a housing(310) arranged at an end of the flexible unit, and an exciter mounted within the exciter module so as to generate an AC magnetic field; a detector module(400) having a housing(410) arranged at the other end of the flexible unit, a detector for detecting the AC magnetic field generated from the exciter module, and an amplifier for amplifying the signal detected by the detector and transmitting the amplified signal to a computer; and a centralizer(500) arranged outside the exciter module and the detector module, which controls the axis forming centers of the exciter module and the detector module to be coaxial with the internal central axis of the pipe.

Abstract translation: 目的：提供一种地下金属管道检查装置，通过使激励器和检测器的轴线形成中心与管道的内部中心轴线同轴，从而降低获得的信号的噪声并提高检查精度。 一种地下金属管道检测设备，包括放大器功率模块（100），其具有壳体（110）和安装在壳体内的电池; 放大器功率模块的两侧按照预定长度布置的柔性单元（200），所述柔性单元（200）根据管的弯曲方向弯曲或拉伸; 激励器模块（300），其具有布置在柔性单元的端部处的壳体（310）以及安装在激励器模块内以便产生AC磁场的激励器; 具有布置在柔性单元的另一端的壳体（410）的检测器模块（400），用于检测由激励器模块产生的AC磁场的检测器以及用于放大由检测器检测到的信号的放大器， 放大信号到计算机; 和布置在激励器模块和检测器模块外部的扶正器（500），所述扶正器（500）控制激励器模块和检测器模块的轴线形成中心以与管道的内部中心轴线同轴。

公开(公告)号：KR1020010045270A

公开(公告)日：2001-06-05

申请号：KR1019990048500

申请日：1999-11-04

Applicant: 고등기술연구원연구조합

Inventor： 정진오 ,  이재경 ,  김형진

IPC: G01M3/00

Abstract: PURPOSE: A method and a device for detecting leakage portions of water supply piping laid under the ground are provided to detect even fine cracks formed in the piping and to exactly detect several portions of leakage existing in the piping. CONSTITUTION: A device for detecting leakage portions of water supply piping laid under the ground includes a detection capsule(2) having a remote field eddy current generator(3), an eddy current signal detector(4) and an amplifier(5) for amplifying signal detected in the eddy current signal detector, a power supplier(10) for supplying power source to the remote field eddy current generator, a wire reel(7) and a wire reel driving motor(8) for moving the detection capsule in a fixed speed, a comparator(11) comparing the amplified detection signal and standard signal applied from the power supplier and detecting a difference value, a distance measurer(12) for measuring a movement distance of the detection capsule, and a computer(13) determining leakage of the piping through data from the comparator and the distance measurer.

Abstract translation: 目的：提供一种用于检测放置在地下的供水管道泄漏部分的方法和装置，用于检测管道中形成的细小裂纹，并准确地检测管道中存在的多个泄漏部分。 构成：用于检测埋在地下的给水管道的泄漏部分的装置，包括具有远场涡流发生器（3）的检测胶囊（2），涡流信号检测器（4）和放大器（5） 在涡电流信号检测器中检测到的信号，用于向远场涡流发生器供电的电源（10），用于将检测胶囊移动到固定的电磁线轴（7）和线卷驱动电动机（8） 比较放大的检测信号和从电源提供的标准信号并检测差值的比较器（11），用于测量检测胶囊的移动距离的距离测量器（12）和确定泄漏的计算机（13） 通过比较器和测距仪的数据进行管路。

公开(公告)号：KR1020020092009A

公开(公告)日：2002-12-11

申请号：KR1020010030852

申请日：2001-06-01

Applicant: 고등기술연구원연구조합

Inventor： 정진오 ,  김형진

IPC: G01M3/00

CPC classification number: G01M3/18 ,  F16L1/11 ,  G01N27/00

Abstract: PURPOSE: An underground metal pipe inspection apparatus is provided to reduce noise of obtained signal and achieve improved accuracy of inspection, by allowing the axis forming centers of an exciter and a detector to be coaxial with the internal central axis of the pipe. CONSTITUTION: An underground metal pipe inspection apparatus, comprises an amplifier power module(100) having a housing(110) and a battery mounted within the housing; a flexible unit(200) arranged into a predetermined length, at both sides of the amplifier power module, which is bent or stretched in accordance with the bending direction of the pipe; an exciter module(300) having a housing(310) arranged at an end of the flexible unit, and an exciter mounted within the exciter module so as to generate an AC magnetic field; a detector module(400) having a housing(410) arranged at the other end of the flexible unit, a detector for detecting the AC magnetic field generated from the exciter module, and an amplifier for amplifying the signal detected by the detector and transmitting the amplified signal to a computer; and a centralizer(500) arranged outside the exciter module and the detector module, which controls the axis forming centers of the exciter module and the detector module to be coaxial with the internal central axis of the pipe.

Abstract translation: 目的：提供一种地下金属管道检查装置，通过允许励磁机和检测器的轴线形成中心与管道的内部中心轴线同轴，减少获得的信号噪声，提高检查精度。 构成：地下金属管检查装置，包括具有壳体（110）的放大器功率模块（100）和安装在壳体内的电池; 在所述放大器功率模块的两侧布置有预定长度的柔性单元，所述柔性单元根据所述管的弯曲方向弯曲或拉伸; 具有布置在所述柔性单元的端部处的壳体（310）的激励器模块（300）和安装在所述激励器模块内以产生AC磁场的激励器; 检测器模块（400），其具有布置在所述柔性单元的另一端的壳体（410），用于检测从所述激励器模块产生的交流磁场的检测器，以及用于放大由所述检测器检测到的信号的放大器， 放大信号到计算机; 以及布置在激励器模块的外部的定心器（500）和检测器模块，其控制激励器模块的轴线形成中心和检测器模块与管的内部中心轴线同轴。