A novel NDIR gas sensing technique based on delta-sigma architecture

Chao Ching Ku, Chih-Hsiung Shen

研究成果: Conference contribution

摘要

This work describes the implementation and the modeling of a gas sensor with delta-sigma architecture. Beyond the conventional technique of periodic heating of light source, our proposed delta-sigma architecture with closed-loop system is obtained by the hybrid combination of a CO2 (Carbon dioxide) infrared sensor prototype which includes an amplifier, FPGA and discrete electronic devices. After a modeling of system, we derive the relationship between gas concentration and sensor by the heating and cooling times. The measurement results show a practical application for all the NDIR measuring techniques and this work also gives a new approach not only to measure gas concentration fast but also obtain the high resolution.

原文English
主出版物標題2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
發行者Institute of Electrical and Electronics Engineers Inc.
頁面146-147
頁數2
ISBN(電子)9781479951451
DOIs
出版狀態Published - 2014 二月 3
事件2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014 - Tokyo, Japan
持續時間: 2014 十月 72014 十月 10

出版系列

名字2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014

Other

Other2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
國家Japan
城市Tokyo
期間14-10-0714-10-10

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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  • 引用此

    Ku, C. C., & Shen, C-H. (2014). A novel NDIR gas sensing technique based on delta-sigma architecture. 於 2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014 (頁 146-147). [7031267] (2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GCCE.2014.7031267