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OPTICAL FIBER TEMPERATURE DISTRIBUTION MEASUREMENT SYSTEM AND OPTICAL FIBER TEMPERATURE DISTRIBUTION MEASUREMENT METHOD
专利权人:
Yokogawa Electric Corporation
发明人:
SHIDA Hideo
申请号:
US201715441445
公开号:
US2017248495(A1)
申请日:
2017.02.24
申请国别(地区):
美国
年份:
2017
代理人:
摘要:
An optical fiber temperature distribution measurement system includes a temperature difference calculator configured to calculate a temperature difference between corresponding spatial resolution zones based on a first temperature distribution obtained by a return light from a first optical fiber part and a second temperature distribution obtained by a return light from a second optical fiber part, and an abnormality detector configured to calculate a temperature difference for evaluation for each spatial resolution zone, the temperature difference for evaluation being a sum of a temperature difference of each spatial resolution zone and a temperature difference of a spatial resolution zone adjacent thereto, and to determine that an abnormality has occurred in a roller near the spatial resolution zone when the calculated temperature difference for evaluation exceeds a reference value.
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中国工程科技知识中心
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http://www.ckcest.cn/home/

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