High-sensitivity miniature dual-resonance photoacoustic sensor based on silicon cantilever beam for trace gas sensing.
High-sensitivity miniature dual-resonance photoacoustic sensor based on silicon cantilever beam for trace gas sensing.
复制标题
用于微量气体传感的基于硅悬臂梁的高灵敏度微型双谐振光声传感器
DOI:
10.1016/j.pacs.2022.100386
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发表时间:
2022-09
期刊:
影响因子:
7.9
通讯作者:
Mei, Liang
中科院分区:
文献类型:
--
作者:
Wu, Guojie;Gong, Zhenfeng;Ma, Junsheng;Li, Haie;Guo, Min;Chen, Ke;Peng, Wei;Yu, Qingxu;Mei, Liang
We report a miniature dual-resonance photoacoustic (PA) sensor, mainly consisting of a small resonant T-type PA cell and an integrated sensor probe based on a silicon cantilever beam. The resonance frequency of the miniature T-type PA cell is matched with the first-order natural frequency of the cantilever beam to achieve double resonance of the acoustic signal. The volume of the designed T-type PA cell is only about 2.26 cubic centimeters. A PA spectroscopy (PAS) system, employing the dual-resonance photoacoustic (PA) sensor as the prober and a high-speed spectrometer as the demodulator, has been implemented for high-sensitivity methane sensing. The sensitivity and the minimum detection limit can reach up to 2.0 pm/ppm and 35.6 parts-per-billion, respectively, with an averaging time of 100 s. The promising performance demonstrated a great potential of employing the reported sensor for high-sensitivity gas sensing in sub cubic centimeter-level spaces.
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影响因子:
3.6
作者:
Chen, Ke;Yu, Zhihao;Yu, Qingxu
通讯作者:
Yu, Qingxu
影响因子:
7.4
作者:
Guo, Min;Chen, Ke;Yu, Qingxu
通讯作者:
Yu, Qingxu
影响因子:
3.6
作者:
Lang, Ziting;Qiao, Shunda;Ma, Yufei
通讯作者:
Ma, Yufei
影响因子:
3.8
作者:
Hu, Yinqiu;Qiao, Shunda;Ma, Yufei
通讯作者:
Ma, Yufei
DOI:
10.1016/j.jqsrt.2020.107136
发表时间:
2020-09-01
影响因子:
2.3
作者:
Gong, Zhenfeng;Gao, Tianli;Chen, Ke
通讯作者:
Chen, Ke