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1. 发明申请

WO2006027613A2 FIBRE OPTIC SENSING SYSTEM 审中-公开
标题翻译：光纤传感系统
公开(公告)号：WO2006027613A2
公开(公告)日：2006-03-16
申请号：PCT/GB2005/003502
申请日：2005-09-12
申请人： UNIVERSITY OF STRATHCLYDE , RUDDOCK, Ivan, Speer , HAN, Thomas, Peow, Juan
发明人： RUDDOCK, Ivan, Speer , HAN, Thomas, Peow, Juan
IPC分类号： G01D5/353 , G01K11/32
CPC分类号： G01K11/32 , G01K11/20 , G01K11/3213
摘要： Method and apparatus for measuring physical parameters, wherein pulses of light (20, 25) are injected into opposite ends of a fibre optic cable (15) made from fluorescent material. The fluorescent material and wavelength of the photons (30, 35) is such that two photon absorption and fluorescence occurs through absorption of a photon (30, 35) from each pulse (20, 25). The fluoresced light (45) is then detected (50) and used to determine the value of a physical parameter such as temperature or strain. The timing of the injected pulses (20, 25) relative to each other may be varied in order to select measurement points along the fibre (15). The background fluoresced light signal may be reduced or eliminated by using pulses (20, 25) having differing frequencies and/or having a non-resonant pulse of considerably greater intensity than any resonant pulses.
摘要翻译：用于测量物理参数的方法和设备，其中光脉冲（20,25）被注入由荧光材料制成的光缆（15）的相对端。光子（30,35）的荧光材料和波长使得通过吸收来自每个脉冲（20,25）的光子（30,35）而发生双光子吸收和荧光。然后检测（50）荧光灯（45）并用于确定诸如温度或应变等物理参数的值。注入脉冲（20,25）相对于彼此的时序可以变化，以便沿着光纤（15）选择测量点。通过使用具有不同频率的脉冲（20,25）和/或具有比任何谐振脉冲具有明显更大的强度的非谐振脉冲，可以减少或消除背景荧光信号。

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