发明名称 |
METHOD FOR MEASURING THE LENGTH OF AN ELECTRIC CABLE THAT USES AN OPTICAL FIBRE ELEMENT AS A SENSOR |
摘要 |
<p>The present invention relates to a method of measuring the length of an electric cable, the method comprising: providing an electric cable having a cable length and including a cable neutral axis, and a fibre unit longitudinally extending along the cable and including an optical fibre arranged substantially along the neutral axis, wherein the optical fibre is mechanically coupled with the cable; injecting an optical signal into the optical fibre; detecting back-scattered light from the optical fibre responsive to said injected optical signal; analysing the detected back-scattered light as a function of time so as to determine the length of the optical fibre, and deriving the cable length from the length of the optical fibre.</p> |
申请公布号 |
WO2012073260(A1) |
申请公布日期 |
2012.06.07 |
申请号 |
WO2010IT00475 |
申请日期 |
2010.11.29 |
申请人 |
PRYSMIAN S.P.A.;KNUEPFER, BERND;SARCHI, DAVIDE |
发明人 |
KNUEPFER, BERND;SARCHI, DAVIDE |
分类号 |
H01B7/32;G01B11/02 |
主分类号 |
H01B7/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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