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Discriminative measurement for temperature and humidity using hollow- core Fabry-Perot interferometer

机译:使用空心法布里-珀罗干涉仪进行温度和湿度的判别式测量

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摘要

In this work, an in-fiber Fabry-Perot interferometer (FPI) is proposed and experimentally demonstrated for ambient relative humidity (RH) and temperature measurements. The FPI is manufactured from short segments of hollow-core fiber (HCF) and photonic crystal fiber (PCF). The air-cavity in the HCF segment enables a strong light-air interaction whereas the air holes of the PCF serve as vents which enable the exchange of air between the air-cavity and the surrounding medium. Our findings show that the dip intensity is solely sensitive to the change in RH with a linear sensitivity of 0.06273 dB/%RH in the range of 35-71%RH whereas the dip wavelength is solely sensitive to the ambient temperature with a linear sensitivity of 10.64 pm/degrees C in the range of 25-70 degrees C. The cross-sensitivity between the two measurands can be disregarded, therefore no sophisticated equation is required for the discriminative measurement of humidity and temperature.
机译:在这项工作中,提出了一种光纤法布里-珀罗干涉仪(FPI),并通过实验证明了其可用于环境相对湿度(RH)和温度测量。 FPI由空心光纤(HCF)和光子晶体光纤(PCF)的短段制成。 HCF段中的气孔可实现强烈的空气与空气之间的相互作用,而PCF的气孔充当通风孔,可在气孔和周围介质之间交换空气。我们的发现表明,下降强度仅对RH的变化敏感,线性灵敏度为0.06273 dB /%RH,在35-71%RH的范围内,而下降波长仅对环境温度敏感,线性灵敏度为在25-70摄氏度范围内为10.64 pm /摄氏度。可以忽略两个被测物之间的交叉敏感度,因此对于判别湿度和温度不需要复杂的方程式。

著录项

  • 来源
    《Optical fiber technology》 |2019年第12期|102027.1-102027.6|共6页
  • 作者

  • 作者单位

    Northwest Univ Sch Phys Xian 710069 Shaanxi Peoples R China;

    Northwest Univ Sch Phys Xian 710069 Shaanxi Peoples R China|Univ Malaya Photon Res Ctr Kuala Lumpur 50603 Malaysia;

    Univ Malaya Photon Res Ctr Kuala Lumpur 50603 Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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