发明名称 |
Remote monitoring of tightness of stator windings |
摘要 |
A system for monitoring tightness of stator windings in an electric machine is provided. The system includes a light source for providing an optical power. The system also includes an optical separation sensor situated in a stator core and including an optical interface element for absorbing some of the optical power. Further, the system includes a power meter for measuring at least one intensity of the optical power after absorption by the optical interface element and a control subsystem for assessing the tightness of the stator windings. |
申请公布号 |
US8830448(B2) |
申请公布日期 |
2014.09.09 |
申请号 |
US201113334857 |
申请日期 |
2011.12.22 |
申请人 |
General Electric Company |
发明人 |
Berkcan Ertugrul;Lape Brock Matthew;Graf John Frederick;Koste Glen Peter;Hershey John Erik |
分类号 |
G01B11/16;G01L5/00;G01M11/08 |
主分类号 |
G01B11/16 |
代理机构 |
|
代理人 |
Agosti Ann M. |
主权项 |
1. A system for monitoring tightness of stator windings in an electric machine, the system comprising:
a light source for providing light at multiple wavelengths; an optical separation sensor situated in a stator core, wherein the optical separation sensor comprises an optical fiber core, an optical fiber cladding enclosing the optical fiber core, and an optical interface element situated in a region of the optical fiber cladding such that a portion of the provided light from the light source is absorbable by the optical interface element, wherein the optical interface element comprises a wavelength selective material configured for higher percentage absorption of the provided light at a first wavelength as compared to percentage absorption of the provided light at a second wavelength; a meter for measuring intensities of the provided light at the first and second wavelengths after absorption by the optical interface element; and a control subsystem for using the measured intensities to assess the tightness of the stator windings. |
地址 |
Niskayuna NY US |