Wide-Area Mapping and Identification System for Detection of Chemical Contamination on Surfaces

摘要

The detection of chemical hazards on surfaces continues to be a challenge for the sensing community. In order tominimize risk to users, a desirable configuration is a non-contact (standoff) system, which can operate a safe distancefrom the hazard. A conceptual solution to this challenge is the Wide-Area Mapping and Identification (WAMId) system.The WAMId prototype breadboard combines two distinct technologies, hyperspectral imaging and standoff Ramanspectroscopy, operating in tandem to locate and identify anomalous areas of interest and then presumptively identifysurface contaminates. In the developed configuration, a single short to mid wave infrared (SWIR/MWIR) hyperspectralcamera images a scene of interest, data is processed to locate anomalous materials and the resulting coordinates from thescene are uploaded to a gimbal control which then slews an 830 nm Raman system to perform presumptive identificationmeasurements. In this work, we present the results of the program, to include system development, and sample testingdata for three chemicals.