发明授权
- 专利标题： Method and apparatus for monitoring cracks of a rotatable body
- 专利标题（中）： 用于监测可旋转体的裂纹的方法和装置
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申请号： US681576申请日： 1984-12-14
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公开(公告)号： US4685335A公开(公告)日： 1987-08-11
- 发明人: Kazuo Sato , Kouki Shiohata , Osami Matsushita , Katsuaki Kikuchi , Masakazu Takasumi , Ichiya Sato , Ryoichi Kaneko
- 申请人： Kazuo Sato , Kouki Shiohata , Osami Matsushita , Katsuaki Kikuchi , Masakazu Takasumi , Ichiya Sato , Ryoichi Kaneko
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX57-34414 19820303
- 主分类号： G01M99/00
- IPC分类号： G01M99/00 ; G01N29/14 ; G01N29/04
摘要：
A method and apparatus for monitoring cracks of a rotatable body by detecting cracks by measuring accoustic emission signals and evaluating the depth of cracks from the result of the comparison of assumed vibrations of the rotatable body and its measured vibrations. By this method and apparatus not only the beginning of cracking of the rotatable body, but also the progress of cracking on an online basis can be detected and monitored.
公开/授权文献
- US5685737A Electrical connector having a visual indicator 公开/授权日：1997-11-11
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