摘要
研究了保偏光纤光栅(PMFBG)的传感特性。在0MPa～2.5MPa的范围内对其压力敏感特性进行了研究,其两个偏振方向上的压力敏感系数分别为0.003274nm/MPa和0.004450nm/MPa;对其14°C～50°C范围内的温度敏感特性进行了研究,发现其两偏振方向上的温度敏感系数为0.0090nm/°C和0.0103nm/°C。从而得出保偏光纤光栅可以解决传感时温度压力交叉敏感问题的一种方法。
The sensing characteristics of polarization maintenance fiber Bragg gratting （PMFBG） was studied. The pressure sensing characteristics of PMFBGs between 0MPa-2.5MPa was studied; the pressure-sensitive coefficients of its two polarization direction were 0.003274nm/MPa and 0.004450nm/MPa. The temperature sensing characteristics of PMFBGs between 14℃ and 50℃was studied ,and was founded that its temperature-sensitive coefficients of its two polarization direction were 0.0090nm/℃ 和 0.0103nm/℃.So the conclusion was given that the PMFBGs can solve the problem of grattings＇ cross sensing between pressure and temperature.
出处
《传感器世界》
2006年第6期23-26,共4页
Sensor World
关键词
保偏光纤光栅
温度传感
压力传感
polarization maintenance fiber Bragg gratting
temperature sensing
press sensing
