Design of Surface Acoustic Wave Sensor for Rapid Detection of Hydrogen Sulfide

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Design of Surface Acoustic Wave Sensor for Rapid Detection of Hydrogen Sulfide

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[1]Xueli Liu,Zhang Yufeng,Liang Yong,et al.Design of Surface Acoustic Wave Sensor for Rapid Detection of Hydrogen Sulfide[J].Journal of Zhengzhou University (Engineering Science),2019,40(06):43-46.[doi:10.13705/j.issn.1671-6833.2019.06.006]

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 40 Number of periods: 2019 06 Page number: 43-46 Column: Public date: 2019-11-16

Title:: Design of Surface Acoustic Wave Sensor for Rapid Detection of Hydrogen Sulfide

Author(s):: Xueli Liu1; 2; Zhang Yufeng 1; Liang Yong 1; Li Junhong 1; Wang Wen 1; 1. Ultrasonic Technology Center, Institute of Acoustics, Chinese Academy of Sciences; 2. School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences

Keywords:: surface acoustic waves; Triethanolamine; delay line; phase detector; Hydrogen sulfide sensor

CLC:: TN384

DOI:: 10.13705/j.issn.1671-6833.2019.06.006

Abstract:: In this contribution, a surface acoustic wave (SAW) based H2S sensor was proposed for by combining the SAW technology with fast response and TEA with selective absorption towards H2S. By means of the drop-coating method, a 200MHz SAW H2S sensing device with delay line configuration was developed, and collected into the differential phase discrimination circuit, and the corresponding SAW H2S sensor system was constructed. The measured results in H2S gas experiments indicates that fast response (≤30s), high sensitivity (4.27 mV/ppm) and lower detection limit (0.14 ppm) were achieved. It means the proposed SAW sensor will be promising for sulfide sensing

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Last Update: 2019-11-25