Enviar artigo por via de e-mail High-Sensitivity Detection of Water Vapor Concentration: Optimization and Performance
- Autores: Dang H.1, Ma Y.1,2, Li Y.1, Wan S.1
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Afiliações:
- School of Science, Xijing University
- National Key Laboratory of Science and Technology on Tunable Lasers Harbin Institute of Technology
- Edição: Volume 39, Nº 1 (2018)
- Páginas: 95-97
- Seção: Article
- URL: https://ogarev-online.ru/1071-2836/article/view/248344
- DOI: https://doi.org/10.1007/s10946-018-9694-4
- ID: 248344
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Resumo
We demonstrate a trace gas sensor to measure the water vapor (H2O) concentration based on quartzenhanced photoacoustic spectroscopy (QEPAS). Here, the wavelength-modulation spectroscopy (WMS) with the second-harmonic detection is utilized. We add two metallic tubes acting as a microresonator (mR) to the quartz tuning fork (QTF) sensor design to improve the sensor signal level. After optimization of the mR dimensions and laser modulation depth, we obtain a minimum detection limit (MDL) of 5.73 ppm.
Sobre autores
Hongtao Dang
School of Science, Xijing University
Email: mayufei926@163.com
República Popular da China, Xi’an, 710123
Yufei Ma
School of Science, Xijing University; National Key Laboratory of Science and Technology on Tunable Lasers Harbin Institute of Technology
Autor responsável pela correspondência
Email: mayufei926@163.com
República Popular da China, Xi’an, 710123; Harbin, 150001
Yu Li
School of Science, Xijing University
Email: mayufei926@163.com
República Popular da China, Xi’an, 710123
Shaosong Wan
School of Science, Xijing University
Email: mayufei926@163.com
República Popular da China, Xi’an, 710123
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