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    • 1. 发明申请
    • Method and System for Torsional Wave Inspection of Heat Exchanger Tubes
    • 热交换器扭转波检测方法与系统
    • US20050104584A1
    • 2005-05-19
    • US10711747
    • 2004-10-01
    • Hegeon KwunJames CraneSang-Young Kim
    • Hegeon KwunJames CraneSang-Young Kim
    • F28F20060101G01N27/82
    • G01N27/82
    • The invention provides an improved method and device for inspecting heat exchanger tubes from within the tube inside diameter that overcomes the shortcomings of the prior art. It adapts a guided-wave probe approach that makes use of a torsional wave mode instead of a longitudinal wave node disclosed in the prior art. The torsional wave mode has many advantages over the longitudinal wave mode for detecting defects. When energized by suitable instrumentation, the probe is caused to generate a torsional mode signal that is transmitted to the heat exchanger tube from the waveguide tube. When reflected signals from defects in the heat exchanger tube walls are returned to the inspection opening end of the heat exchanger tube, the reflected defect signals are transmitted to the probe waveguide tube for amplification, detection and characterization of the reflected signal.
    • 本发明提供一种改进的方法和装置,用于从管内径检测热交换器管,克服了现有技术的缺点。 它适应了使用扭转波模式而不是现有技术中公开的纵波节点的导波探测方法。 扭转波模式比用于检测缺陷的纵波模式具有许多优点。 当通过适当的仪器通电时,使探头产生从波导管传递到热交换器管的扭转模式信号。 当来自热交换器管壁中的缺陷的反射信号返回到热交换器管的检查开口端时,反射的缺陷信号被传输到探针波导管,用于放大,检测和表征反射信号。
    • 6. 发明授权
    • Measurement of torsional dynamics of rotating shafts using magnetostrictive sensors
    • 使用磁致伸缩传感器测量旋转轴的扭转动力学
    • US07131339B2
    • 2006-11-07
    • US10417960
    • 2003-04-17
    • Hegeon KwunSang-Young Kim
    • Hegeon KwunSang-Young Kim
    • G01L3/02
    • G01L3/102G01L3/105
    • A device and method for the non-contact measurement of dynamic torsion in a rotating shaft using magnetostrictive sensors (MsS). The monitoring and detection system have specially configured magnetostrictive signal detectors that include inductive pickup coils, in which signals corresponding to localized shaft torques are induced. The non-contact method for measuring dynamic torques includes fixing a ferromagnetic strip to a ferromagnetic or non-ferromagnetic shaft and inducing a circumferential residual magnetization therein. An MsS in the form of either an encircling coil positioned around the shaft on a cylindrical substrate, or a partially encircling coil positioned on a flexible substrate and wrapped partially about the shaft.
    • 一种使用磁致伸缩传感器(MsS)在旋转轴中非接触测量动态扭矩的装置和方法。 监测和检测系统具有特殊配置的磁致伸缩信号检测器,其包括感应拾取线圈,其中感应对应于局部轴转矩的信号。 用于测量动态转矩的非接触方法包括将铁磁条固定到铁磁或非铁磁轴并且在其中引起圆周剩余磁化。 形式为围绕圆筒形基板上的轴定位的环绕线圈形式的MsS或位于柔性基板上的部分环绕的线圈并部分围绕轴缠绕的MsS。
    • 7. 发明授权
    • Method and system for torsional wave inspection of heat exchanger tubes
    • 换热器管扭转波检测方法及系统
    • US07019520B2
    • 2006-03-28
    • US10711747
    • 2004-10-01
    • Hegeon KwunJames F. CraneSang-Young Kim
    • Hegeon KwunJames F. CraneSang-Young Kim
    • G01N27/82G01M15/00G01M13/00
    • G01N27/82
    • The invention provides an improved method and device for inspecting heat exchanger tubes from within the tube inside diameter that overcomes the shortcomings of the prior art. It adapts a guided-wave probe approach that makes use of a torsional wave mode instead of a longitudinal wave node disclosed in the prior art. The torsional wave mode has many advantages over the longitudinal wave mode for detecting defects. When energized by suitable instrumentation, the probe is caused to generate a torsional mode signal that is transmitted to the heat exchanger tube from the waveguide tube. When reflected signals from defects in the heat exchanger tube walls are returned to the inspection opening end of the heat exchanger tube, the reflected defect signals are transmitted to the probe waveguide tube for amplification, detection and characterization of the reflected signal.
    • 本发明提供一种改进的方法和装置,用于从管内径检测热交换器管,克服了现有技术的缺点。 它适应了使用扭转波模式而不是现有技术中公开的纵波节点的导波探测方法。 扭转波模式比用于检测缺陷的纵波模式具有许多优点。 当通过适当的仪器通电时,使探头产生从波导管传递到热交换器管的扭转模式信号。 当来自热交换器管壁中的缺陷的反射信号返回到热交换器管的检查开口端时,反射的缺陷信号被传输到探针波导管,用于放大,检测和表征反射信号。
    • 10. 发明申请
    • Measurement of torsional dynamics of rotating shafts using magnetostrictive sensors
    • 使用磁致伸缩传感器测量旋转轴的扭转动力学
    • US20070051188A1
    • 2007-03-08
    • US11593265
    • 2006-11-06
    • Hegeon KwunSang-Young Kim
    • Hegeon KwunSang-Young Kim
    • G01L3/00
    • G01L3/102G01L3/105
    • A device and method for the non-contact measurement of dynamic torsion in a rotating shaft using magnetostrictive sensors (MsS). The monitoring and detection system have specially configured magnetostrictive signal detectors that include inductive pickup coils, in which signals corresponding to localized shaft torques are induced. The non-contact method for measuring dynamic torques includes fixing a ferromagnetic strip to a ferromagnetic or non-ferromagnetic shaft and inducing a circumferential residual magnetization therein. An MsS in the form of either an encircling coil positioned around the shaft on a cylindrical substrate, or a partially encircling coil positioned on a flexible substrate and wrapped partially about the shaft.
    • 一种使用磁致伸缩传感器(MsS)在旋转轴中非接触测量动态扭矩的装置和方法。 监测和检测系统具有特殊配置的磁致伸缩信号检测器,其包括感应拾取线圈,其中感应对应于局部轴转矩的信号。 用于测量动态转矩的非接触方法包括将铁磁条固定到铁磁或非铁磁轴并且在其中引起圆周剩余磁化。 形式为围绕圆筒形基板上的轴定位的环绕线圈形式的MsS或位于柔性基板上的部分环绕的线圈并部分围绕轴缠绕的MsS。