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    • 3. 发明专利
    • Bolt height measuring method and device, bolt looseness determination method, and bolt looseness detection device
    • 螺栓高度测量方法和装置,螺旋松弛度测定方法和螺栓松弛度检测装置
    • JP2006317288A
    • 2006-11-24
    • JP2005140267
    • 2005-05-12
    • Central Japan Railway Co東海旅客鉄道株式会社
    • ISHIHARA HIROMORIMIZUNO NOBUHIKO
    • G01B11/02G01L5/00
    • PROBLEM TO BE SOLVED: To provide a bolt height measuring method capable of determining the height accurately even when the bolt is dirty, a bolt looseness determination method, a bolt height measuring device and a bolt looseness detection device.
      SOLUTION: This bolt height measuring method has characteristics wherein a bolt head top face whose height is to be measured is irradiated with slit-shaped inspection light, and the magnitude of deviation between a linear light figure formed on the bolt head top face by the inspection light and a reference line having the known height and parallel to the light figure is determined, and the height of the bolt head is determined based on the determined magnitude of deviation. The bolt looseness determination method, the bolt height measuring device and the bolt looseness detection device are also provided.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种螺栓高度测量方法,即使在螺栓变脏时也能够精确地确定高度,螺栓松动确定方法,螺栓高度测量装置和螺栓松动检测装置。 解决方案:该螺栓高度测量方法具有以下特征:其中要测量高度的螺栓头顶面被缝合形状的检查光照射,并且形成在螺栓头顶面上的线形光线图之间的偏差大小 通过检查光和具有已知高度并平行于光图的参考线被确定,并且基于所确定的偏差幅度来确定螺栓头的高度。 还提供螺栓松动测定方法,螺栓高度测量装置和螺栓松动检测装置。 版权所有(C)2007,JPO&INPIT