用光子晶体光纤光栅实现温度、应力和气体浓度的同时传感

潘崇麟, 惠小强, 张涪梅

潘崇麟, 惠小强, 张涪梅. 用光子晶体光纤光栅实现温度、应力和气体浓度的同时传感[J]. 应用光学, 2013, 34(2): 374-380.
引用本文: 潘崇麟, 惠小强, 张涪梅. 用光子晶体光纤光栅实现温度、应力和气体浓度的同时传感[J]. 应用光学, 2013, 34(2): 374-380.
shu
PAN Chong-lin, XI Xiao-qiang, ZHANG Fu-mei. Using photonic crystal fiber grating sensor to measure temperature, strain and gas concentration simultaneously[J]. Journal of Applied Optics, 2013, 34(2): 374-380.
Citation: PAN Chong-lin, XI Xiao-qiang, ZHANG Fu-mei. Using photonic crystal fiber grating sensor to measure temperature, strain and gas concentration simultaneously[J]. Journal of Applied Optics, 2013, 34(2): 374-380.
shu

用光子晶体光纤光栅实现温度、应力和气体浓度的同时传感

  • 1.

    西安邮电大学 理学院,陕西 西安 710121;

  • 2.

    西藏大学 理学院,西藏 拉萨 850000

详细信息
    通讯作者:

    潘崇麟（1987-），男，山西运城人，硕士研究生，主要从事光纤光栅传感研究工作。 Email: ak633418@126.com

  • 中图分类号: TN202; TN253

Using photonic crystal fiber grating sensor to measure temperature, strain and gas concentration simultaneously

  • 1.

    School of Science,Xi-an University of Posts and Telecommunications,Xi-an 710121,China;

  • 2.

    School of Science,University of Tibet,Lhasa 850000,China

摘要

    摘要
  • 摘要: 为了解决传统光纤传感在传感不同物理参量时需要多个传感器的问题，并拓展光纤在同时传感多参量方面的应用，结合光子晶体光纤（PCF）中基模与高阶模光的不同传感特性以及气体吸收传感原理，在PCF传感温度、应力双参量的实验基础上，应用理论分析的手段探讨了同时传感温度、应力和气体浓度3种参量的方法。给出了3种参量的计算式并进行了数值模拟，最后设计了一套相对简单、性价比高的传感解调系统。理论分析和数值模拟表明：温度在0℃以上时可以获得高于0.98 pm/℃的温度灵敏度；基模光应力灵敏度为1.2 pm/，高阶模光可获得高于0.83 pm/的应力灵敏度；长度较短的光子晶体光纤能够测量较高的气体浓度。本方案使用2个写入光纤布拉格光栅（FBG）的PCF作为传感器同时传感温度、应力和气体浓度3种参量，能够有效降低传感成本，拓宽气体、液体传感研究的思路。
    Abstract: In order to solve the problem of needing multi-sensor to measure different physical parameters, and enlarge the application of measuring multi-parameters simultaneously, different sensing characteristics of fundamental mode and higher order mode in photonic crystal fiber (PCF) and gas absorption sensing principle were combined. The method to measure temperature, strain and gas concentration simultaneously was discussed based on the experiment of measuring temperature and strain with PCF. Calculation formulas and numerical simulation of the three parameters were offered, and the simple and high cost performance sensing demodulation system was designed at last. Results show that, the temperature sensitivity is more than 0.98 pm/℃ when the temperature is up 0℃, the strain sensitivity of fundamental mode is 1.2 pm/, and the higher order mode is more than 0.83 pm/. The shorter photonic crystal fiber can measure the higher gas concentration. The proposal can decrease the cost of using fiber sensor to measure the three parameters, and can expand the research approach of gas and liquid sensor.
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    • 参考文献(1)
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  • 刊出日期:  2013-03-14

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