A NDIR CO/sub 2/ monitor with smart interface for global networking

  title={A NDIR CO/sub 2/ monitor with smart interface for global networking},
  author={Yanfeng Wang and Masakatsu Nakayama and Mikiko Yagi and Masami Nishikawa and Masaichi Fukunaga and Kenzo Watanabe},
  journal={Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.04CH37510)},
  pages={1194-1198 Vol.2}
A low cost and networkable CO/sub 2/ monitor is developed, which consists of a non-dispersive infrared (NDIR) sensor and a network interface. It measures the CO/sub 2/ concentration by spectrum absorption in the 4.26 /spl mu/m band due to CO/sub 2/ molecules in the air. On-line calibration, the access to the TEDSs defined in IEEE 1451.2 standard and measured data are made by Java applet and client programs in C language. The prototype monitor has durability and long term stability with a… CONTINUE READING


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