Remote Vapor Sensing using a Mobile FTIR Sensor.
Kroutil-RT; Ditillo-JT; Gross-RL; Combs-RJ; Loerop-WR; Small-GW
NIOSH 1991 Feb:559-570
The use of a mobile Fourier transform infrared (FTIR) spectroscopy for remote sensing of hazardous chemical vapors was discussed. Applications included detection or monitoring of chemical warfare agents, stack emissions, wood smoke components, auto emissions, industrial releases, and chemical leaks. Signal processing hardware for mobile FTIR data collection was discussed, including single board computers using digital signal processing technology. The use of finite impulse response filters and infinite impulse response filters was considered. The authors conclude that infrared interferometer hardware, signal processing computer hardware, and the application of new mathematical algorithms have rapidly advanced remote sensing technology. Small lightweight interferometers exist which can withstand severe mechanical vibrations while operating on rapidly moving helicopter platforms. Signal processing algorithms are available which can extract infrared background information in order to give an automatic alarm indication for the presence of a particular chemical vapor species. Digital signal processing hardware has been constructed which allows infrared remote sensing to process data in real time.
Spectrographic-analysis; Environmental-pollution; Analytical-methods; Analytical-chemistry; Chemical-analysis; Air-quality-monitoring; Industrial-emissions; Automotive-emissions; Chemical-warfare-agents; Combustion-products;
Field Screening Methods for Hazardous Wastes and Toxic Chemicals. Second International Symposium, February 12-14, 1991. Sponsored by U.S. EPA; U.S. DOE; U.S. Army Toxic and Hazardous Materials Agency; U.S. Army Chemical Research Development and Engineering Center; U.S.A.F.; Florida State Univ.; National Environmental Technology Applications Corp.; and NIOSH