| Autor: |
Zongming Bao, Xin-Min Ji, Yi-Wei Shi, Yiping Huang, Jing Peng, Quan Liu |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology. |
| DOI: |
10.1109/icsict.2010.5667528 |
| Popis: |
A novel CO 2 non-dispersive infrared (NDIR) sensor using the mid-infrared (mid-IR) hollow fiber as a gas cell has been demonstrated. The mid-IR hollow fiber is chosen for its optimum transmission band (bandgap) overlap with CO 2 fundamental absorption spectrum around 4.26 µm to serve as a filter. A comparison with the system using a smooth metal cell is presented. The signal noise suggests that a measurement resolution better than 5 ppm concentration is achievable using this mid-IR hollow fiber. The response time of the system using hollow fiber can be in the order of shorter than 10s with the sensitivity of 1.82 mv/ppm. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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