Abstract
A fiber optic remote sensing method for measuring the infrared reflectance from chlorinated hydrocarbons in soils is demonstrated. Minimum observable signal corresponding to 250 ppm of trichloroethylene (TCE) in sea-sand was measured with the system over a distance of 12 meters. We also report a novel analysis technique for extracting chemical contaminant information from IR spectra. Suggestions for further enhancing the sensor’s threshold detection limit are offered.
© 1996 IEICE
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