Compact Two-Band Thermographer for Remote Measurement of Skin Temperature
Small Business Information
461 Boston Street, Topsfield, MA, 01983
AbstractThe goal of this Phase II effort is to design, build, test, and deliver a prototype two-band remote infrared thermographer capable of accurate skin temperature measurements at large standoffs. This system incorporates the color temperature measurement technique that was validated in the Phase I work based on the difference between the integrated radiance of two adjacent IR spectral channels. The two IR channels are critically chosen to minimize the impact of varying humidity levels; the Phase II will also utilize a normalized difference signal which minimizes the attenuating effects of rain, fog, and snow. This system will employ a modified commercial 16" Schmidt-Cassegrain telescope and two uncooled microbolometer focal plane arrays to provide the two thermal IR images form which the target temperature is extracted. The Phase II will also produce a GUI which is used to view the scene, select the region of interest, and control other operating parameters. Performance projections are a target temperature accuracy of Â¿1.5Â¿C at a 15Hz measurement bandwidth with a 12cm spatial resolution at a 1km standoff. This system will also include an on-axis compact VIS/NIR wide field imager whose output will be fused to the IR image and presented by the GUI.
* information listed above is at the time of submission.