公开(公告)号：EP2975373B1

公开(公告)日：2016-12-14

申请号：EP15175636.8

申请日：2015-07-07

申请人： Yokogawa Electric Corporation

发明人： Nishio, Yuuji

IPC分类号： G01K11/32

CPC分类号： G01K11/32 ,  G01K15/005 ,  G01K2011/324

摘要： An optical fiber temperature distribution measuring device includes: an optical fiber as a sensor; a light source for outputting, to the optical fiber, signal light which has been amplified by excitation light; a temperature distribution calculation unit for measuring a temperature distribution along the optical fiber by using backward Raman scattered light from the optical fiber; an ASE light intensity variation measurement unit for measuring an intensity variation of an ASE light generated at the light source; and a temperature distribution correction unit for correcting the temperature distribution based on a measurement result of the ASE light intensity variation measurement unit.

公开(公告)号：EP2975373A1

公开(公告)日：2016-01-20

申请号：EP15175636.8

申请日：2015-07-07

申请人： Yokogawa Electric Corporation

发明人： Nishio, Yuuji

IPC分类号： G01K11/32

CPC分类号： G01K11/32 ,  G01K15/005 ,  G01K2011/324

摘要： An optical fiber temperature distribution measuring device includes: an optical fiber as a sensor; a light source for outputting, to the optical fiber, signal light which has been amplified by excitation light; a temperature distribution calculation unit for measuring a temperature distribution along the optical fiber by using backward Raman scattered light from the optical fiber; an ASE light intensity variation measurement unit for measuring an intensity variation of an ASE light generated at the light source; and a temperature distribution correction unit for correcting the temperature distribution based on a measurement result of the ASE light intensity variation measurement unit.

摘要翻译： 一种光纤温度分布测量装置，包括：作为传感器的光纤; 光源，用于将已经被激励光放大的信号光输出到光纤; 温度分布计算单元，用于通过使用来自所述光纤的后向拉曼散射光来测量沿着所述光纤的温度分布; ASE光强度变化测量单元，用于测量在所述光源处产生的ASE光的强度变化; 以及温度分布校正单元，用于基于ASE光强度变化测量单元的测量结果来校正温度分布。