中国激光, 2013, 40 (2): 0205005, 网络出版: 2013-01-14   

分程式双灵敏度光纤光栅压力/温度监测装置的研制

Research on Fiber Grating Pressure/Temperature Monitoring Device of Distinguish Range and Double Sensitivity
作者单位
哈尔滨工业大学机电工程学院, 黑龙江 哈尔滨 150001
摘要
研制出一种分程式双灵敏度的光纤光栅压力/温度一体化监测装置。利用分程式的封装结构,在没有改变光纤光栅其他监测指标前提下,增大了压力测量范围。通过设定封装结构尺寸及材料使该装置实现压力/温度双灵敏度一体化监测。进行了压力/温度监测性能实验,实验结果表明,该监测装置的压力监测范围为0~30 MPa,温度监测范围0 ℃~150 ℃。在0~15 MPa、15~30 MPa监测范围内压力灵敏度分别为352.5 pm/MPa和223.3 pm/MPa,线性拟合度分别为99.42%和99.33%;温度灵敏度分别为33.5 pm/℃和22.5 pm/℃,线性拟合度分别为99.69%和99.61%。该传感器结构简单、性能指标优越,具有较高的应用价值。
Abstract
A fiber grating pressure/temperature monitoring device of distinguish range and double sensitivity is developed. Using the Package structure of distinguish range, the pressure measuring range of sensor under the premise of no changing monitoring index of fiber grating is expanded. The size and material of package structure are set to realize the double sensitivity and integration monitoring of pressure and temperature. The monitoring performance of pressure and temperature is tested in experiment, and the results show that the range of pressure measuring is from 0 to 30 MPa, the range of temperature measuring is from 0 ℃ to 150 ℃. Pressure measuring sensitivity are 352.5 pm/MPa and 223.3 pm/MPa respectively under the monitoring range of 0~15 MPa and 15~30 MPa, and linear degrees are 99.42% and 99.33% respectively. Temperature measuring sensitivity are 33.5 pm/℃ and 22.5 pm/℃ respectively, and linear degrees are 99.69% and 99.61% respectively. The proposed monitoring device is simple in structure, which has superior performance and high application value.
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潘洪亮, 董惠娟, 张广玉, 何俊. 分程式双灵敏度光纤光栅压力/温度监测装置的研制[J]. 中国激光, 2013, 40(2): 0205005. Pan Hongliang, Dong Huijuan, Zhang Guangyu, He Jun. Research on Fiber Grating Pressure/Temperature Monitoring Device of Distinguish Range and Double Sensitivity[J]. Chinese Journal of Lasers, 2013, 40(2): 0205005.

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