公开(公告)号：US20100315076A1

公开(公告)日：2010-12-16

申请号：US12864768

申请日：2009-04-24

申请人： Kazuhiko Tsukada ,  Ippei Furukawa ,  Toshiro Kido ,  Masashi Oikawa

发明人： Kazuhiko Tsukada ,  Ippei Furukawa ,  Toshiro Kido ,  Masashi Oikawa

IPC分类号： G01R33/18

CPC分类号： G01L5/102

摘要： A tension measurement apparatus that can carry out tension measurement of superior reproducibility with high sensitivity even for a target object of a stranded wire structure is provided. A cylindrical magnetizer arranged to surround a portion of a long magnetic element that becomes the target object of measurement direct-current magnetizes the magnetic element in the longitudinal direction up to the range of approach to saturation magnetization. Using a Hall element (magnetic sensor) arranged in proximity to the magnetic element at the central region in the longitudinal direction of the magnetic domain, the spatial magnetic field intensity in the neighborhood of the surface of the magnetic element, greatly differing corresponding to stress variation, is detected. Based on the detection value, the tension acting on the magnetic element is measured. Accordingly, a measurement result of superior reproducibility with high sensitivity is obtained. The tension measurement apparatus is applicable even to a target object of a stranded wire structure.

摘要翻译： 提供了即使对于绞合线结构的目标物体也能够进行具有高灵敏度的优异再现性的张力测量的张力测量装置。 设置成围绕成为目标测量对象的长磁性元件的一部分的圆柱形磁化器直流将磁性元件沿纵向磁化直到接近饱和磁化的范围。 使用在磁畴的纵向方向上的中心区域处布置在磁性元件附近的霍尔元件（磁性传感器），磁性元件表面附近的空间磁场强度大大不同于应力变化 ，被检测到。 基于检测值，测量作用在磁性元件上的张力。 因此，获得具有高灵敏度的优异再现性的测量结果。 张力测量装置甚至可应用于绞线结构的目标物体。

公开(公告)号：US08890516B2

公开(公告)日：2014-11-18

申请号：US12864768

申请日：2009-04-24

申请人： Kazuhiko Tsukada ,  Ippei Furukawa ,  Toshiro Kido ,  Masashi Oikawa

发明人： Kazuhiko Tsukada ,  Ippei Furukawa ,  Toshiro Kido ,  Masashi Oikawa

IPC分类号： G01B7/24 ,  G01R33/18 ,  G01L5/10

CPC分类号： G01L5/102

摘要： A tension measurement apparatus that can carry out tension measurement of superior reproducibility with high sensitivity even for a target object of a stranded wire structure is provided. A cylindrical magnetizer arranged to surround a portion of a long magnetic element that becomes the target object of measurement direct-current magnetizes the magnetic element in the longitudinal direction up to the range of approach to saturation magnetization. Using a Hall element (magnetic sensor) arranged in proximity to the magnetic element at the central region in the longitudinal direction of the magnetic domain, the spatial magnetic field intensity in the neighborhood of the surface of the magnetic element, greatly differing corresponding to stress variation, is detected. Based on the detection value, the tension acting on the magnetic element is measured. Accordingly, a measurement result of superior reproducibility with high sensitivity is obtained. The tension measurement apparatus is applicable even to a target object of a stranded wire structure.

摘要翻译： 提供了即使对于绞线结构的目标物体也能够进行具有高灵敏度的优异再现性的张力测量的张力测量装置。 设置成围绕成为目标测量对象的长磁性元件的一部分的圆柱形磁化器直流将磁性元件沿纵向磁化直到接近饱和磁化的范围。 使用在磁畴的纵向方向上的中心区域处布置在磁性元件附近的霍尔元件（磁性传感器），磁性元件表面附近的空间磁场强度大大不同于应力变化 ，被检测到。 基于检测值，测量作用在磁性元件上的张力。 因此，获得具有高灵敏度的优异再现性的测量结果。 张力测量装置甚至可应用于绞线结构的目标物体。