发明授权
US5315234A Eddy current device for inspecting a component having a flexible support
with a plural sensor array
失效
用于检查具有多个传感器阵列的具有柔性支撑件的部件的涡流装置
- 专利标题: Eddy current device for inspecting a component having a flexible support with a plural sensor array
- 专利标题(中): 用于检查具有多个传感器阵列的具有柔性支撑件的部件的涡流装置
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申请号: US862950申请日: 1992-04-03
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公开(公告)号: US5315234A公开(公告)日: 1994-05-24
- 发明人: George H. Sutton, Jr. , Francis H. Little , Kristina H. V. Hedengren , Richard J. Charles , William P. Kornrumpf , Donna C. Hurley
- 申请人: George H. Sutton, Jr. , Francis H. Little , Kristina H. V. Hedengren , Richard J. Charles , William P. Kornrumpf , Donna C. Hurley
- 申请人地址: OH Cincinnati
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: OH Cincinnati
- 主分类号: G01N27/90
- IPC分类号: G01N27/90 ; G01N27/82 ; G01R33/12 ; H01F21/02
摘要:
An eddy current device for inspecting a component includes an eddy current array circuit having respective pluralities of drive and sense elements and having an active face for positioning on a surface of the component during the inspection operation. A backing is disposed on a face of the eddy current array circuit opposite to the active face for concentrating an electromagnetic flux from the eddy current array circuit into the component when each of the plurality of drive elements is being energized. A mechanical arrangement is provided for supporting and deploying the backing and the array circuit to substantially conform with the surface portion under inspection and to cause each of the pluralities of drive and sense elements to be maintained at their respective substantially constant distances from the inspection surface during scanning, preferably at a controlled rate of scan.
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