Spectral-Based Component of the Volume Sensor Program
NAVAL RESEARCH LAB WASHINGTON DC CHEMICAL DYNAMICS AND DIAGNOSTICS BRANCH
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This report describes progress to date in the spectrally based component of the Volume Sensor VS Program at Naval Research Laboratory, in which the goal is to develop a remote, optical sensor for the detection of fire, smoke, and other hazardous events. Two distinct approaches to optical detection outside the visible are being pursued and the results to date are the subject of this report. These are long wavelength near infrared, nightvision imaging and single or multiple element narrow spectral band optical detection at various wavelengths ranging from the mid infrared to the ultraviolet. As demonstrated in studies of small fires, long wavelength imaging provides high contrast for hot objects and more effective detection of reflected flame emission compared to visible video images. A spectral testbed, which consists of commercial optical flame detectors with diagnostic capabilities and single element detectors, has been constructed and its initial testing is described.
- Safety Engineering
- Optical Detection and Detectors