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    • 2. 发明公开
    • 펄스유도자속을 이용한 배관감육 탐상장치 및 탐상방법
    • 使用脉冲磁场检测管道壁的装置和方法
    • KR1020110087477A
    • 2011-08-03
    • KR1020100006915
    • 2010-01-26
    • 한국원자력연구원한국수력원자력 주식회사
    • 박덕근김흥회정용무
    • G01N27/72G01B7/06
    • PURPOSE: An apparatus and a method for detecting the wall of a pipeline using a pulse magnetic field are provided to non-destructively detect the wall of a pipeline without disassembling an insulation material. CONSTITUTION: An apparatus for detecting the wall of a pipeline using a pulse magnetic field comprises a magnetization yoke, a coil unit, a power supply unit(20), a magnetic sensor, an amplifying circuit(60), and a signal processing unit(80). The magnetization yoke is separated from a pipeline(1). The coil unit is wound around the magnetization yoke and forms a pulse magnetic field on the pipeline. The power supply unit supplies pulse power to the coil unit. The magnetic sensor generates a measurement signal by detecting the velocity change of the pulse magnetic field. The amplifying circuit amplifies and filters the measurement signal. The signal processing unit processes the amplified and filtered measurement signal to calculate the thickness change of the wall of the pipeline.
    • 目的:提供一种使用脉冲磁场检测管道壁的设备和方法,用于在不拆卸绝缘材料的情况下非破坏性地检测管道的壁。 构成:使用脉冲磁场检测管道壁的装置包括磁轭,线圈单元,电源单元(20),磁传感器,放大电路(60)和信号处理单元( 80)。 磁化轭与管道(1)分离。 线圈单元缠绕在磁轭上,并在管道上形成脉冲磁场。 电源单元向线圈单元提供脉冲电源。 磁传感器通过检测脉冲磁场的速度变化来产生测量信号。 放大电路对测量信号进行放大和滤波。 信号处理单元处理放大和滤波的测量信号以计算管道壁的厚度变化。