Simultaneous measurement of temperature and relative humidity based on a twisted microfiber coated with nanomaterials
| Autor: | Jie Ma, Shan Liu, Dandan Sun, Yongming Fu, Shaomin Xu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.product_category business.industry Analytical chemistry Atomic and Molecular Physics and Optics Nanomaterials Interferometry chemistry.chemical_compound Optics chemistry Fiber optic sensor Boron nitride Microfiber Relative humidity Sensitivity (control systems) Electrical and Electronic Engineering business Engineering (miscellaneous) Refractive index |
| Zdroj: | Applied optics. 60(13) |
| ISSN: | 1539-4522 |
| Popis: | We propose a twisted microfiber interferometer sensor coated with boron nitride (BN) nanosheets for simultaneous measurement of relative humidity (RH) and temperature ( T ). Sensitive material characteristics (BN nanosheets) enhance refractive index (RI) sensing sensitivity of proposed devices. A twisting process on the microfiber surely improves the evanescent field interaction with the deposited layer. The experimental results show that the RH sensitivities are − 121.6 p m / % R H and 0.26 dBm/%RH for humidity range from 46% to 72% and T sensitivities of 23.5 pm/°C and − 0.045 d B m / ∘ C from 50°C to 90°C. The twisted microfiber interferometer has the advantages of compact structure, high sensitivity, and multiparameter measurement, which has certain potential for more applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|