Abstract
A probe-shaped sensor for simultaneous temperature and pressure measurement was reported in this article. The effective length of the sensor was ∼2mm, consisting of a fiber Bragg grating (FBG) and a Fabry-Perot interferometer (FPI) with a nano silica diaphragm. The response sensitivities of the sensor for pressure and temperature were measured as −0.98 nm/MPa and 11.10 pm/°C, respectively. This sensor had an extremely low cross-sensitivity between pressure and temperature, which provided a significant potential in dual-parameter sensing.
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Acknowledgment
This work was supported by National Natural Science Foundation of China (NSFC) (Grant Nos. 61905165 and 61635007), Natural Science Foundation of Guangdong Province (Grant Nos. 2019A050510047, 2019B1515120042, and 2018A030310581), Education Department of Guangdong Province (Grant No. 2018KQNCX219), and Science and Technology Innovation Commission of Shenzhen (Grant Nos. JCYJ20170412105604705, JCYJ20180305125352956 JCYJ20170818143853289, and JCYJ20170818093743767).
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Liu, B., Luo, J., Liu, S. et al. A Probe-Shaped Sensor With FBG and Fiber-Tip Bubble for Pressure and Temperature Sensing. Photonic Sens 11, 411–417 (2021). https://doi.org/10.1007/s13320-020-0612-3
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DOI: https://doi.org/10.1007/s13320-020-0612-3