TY - GEN
T1 - A novel NDIR gas sensing technique based on delta-sigma architecture
AU - Ku, Chao Ching
AU - Shen, Chih-Hsiung
PY - 2014/2/3
Y1 - 2014/2/3
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84946689338&partnerID=8YFLogxK
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U2 - 10.1109/GCCE.2014.7031267
DO - 10.1109/GCCE.2014.7031267
M3 - Conference contribution
AN - SCOPUS:84946689338
T3 - 2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
SP - 146
EP - 147
BT - 2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
Y2 - 7 October 2014 through 10 October 2014
ER -