9 November 2005 CW simulant detection by NDIR
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A compact, low-cost, multi-wavelength NDIR sensor was designed to measure G-type CW agents at ppm-levels. This 4-color sensor can distinguish between the different agents (sarin, soman, tabun) and is more sensitive than a single wavelength sensor. The design of the sensor and test results with simulants R-12 (dichlorodifluoromethane) and sulfur hexafluoride is presented. These test results support a lower detection limit of 3 ppmv for a 1 sec integration time. Modifications of the sensor design which will enable us to achieve <1 ppmv sensitivity are discussed.
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Jim Daly, Jim Daly, Mark McNeal, Mark McNeal, Bill Gully, Bill Gully, Frank Swanson, Frank Swanson, "CW simulant detection by NDIR", Proc. SPIE 5994, Chemical and Biological Sensors for Industrial and Environmental Security, 59940L (9 November 2005); doi: 10.1117/12.630888; https://doi.org/10.1117/12.630888


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