发明授权
- 专利标题： Optical color change device for detecting electrical abnormality
- 专利标题（中）： 用于检测电气异常的光学颜色变化装置
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申请号： US531165申请日： 1990-05-31
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公开(公告)号： US5075544A公开(公告)日： 1991-12-24
- 发明人: Susumu Sato , Yoshihiro Togashi , Norio Ito , Koichi Ishii , Shinji Yasuda
- 申请人： Susumu Sato , Yoshihiro Togashi , Norio Ito , Koichi Ishii , Shinji Yasuda
- 申请人地址： JPX Tokyo JPX Akita
- 专利权人： Mitsubishi Denki Kabushiki Kaisha,Susumu Sato
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha,Susumu Sato
- 当前专利权人地址： JPX Tokyo JPX Akita
- 优先权： JPX1-305074 19891124
- 主分类号： G01R31/00
- IPC分类号： G01R31/00 ; G01N21/27 ; G01N21/77 ; G01N21/78 ; G01R31/12 ; H01H33/56
摘要：
A device for detecting an electrical abnormality in an electrical device filled with insulating gas. A surface on a light reflecting prism placed within the electrical device carries a color indicator material. The color indicator material changes color when acidic gas is present. This gas is formed when an electrical abnormality such as a short circuit occurs in the presence of the insulator gas. A light source provides light to the prism which reflects light back having a color which varies according to the color of the color indicator material. The color of the reflected light is analyzed to determine if an electrical abnormality is present.
公开/授权文献
- US4048803A Mining shield support apparatus 公开/授权日：1977-09-20
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