The target has a printed circuit (22) on which multiple pairs of conducting strips are placed. The circuit is covered with five heating paint strips (21), each covering the conducting strips that form electrodes. A voltage is applied between the strips (21) which generate heat of about 60 degree. Spaces (23) are situated between the strips (21) and have orifices (24) cutting the diffusion of heat on the circuit between the strips (21).

Infrared reception system e.g. infrared detection device, testing target for e.g. missile, has printed circuit covered with heating paint strips covering conducting strips forming electrodes, where voltage is applied between paint strips

Wielosektorowy promiennik podczerwieni

A key performance parameter of thermal imaging systems is the minimum resolvable temperature difference (MRTD). The authors describe a new approach to on-platform end-to-end thermal imaging system testing which can be accomplished in an unstable field environment, and application of the technique to a superior cost effective field MRTD test system. The new approach consists of quickly establishing the system radiometric zero and very accurately referencing all blackbody temperatures to the radiometric zero. This approach provides excellent radiometric control, resolution, stability, and speed that are needed for meaningful field testing of thermal imaging systems. A test system which incorporates the technology, the portable electrooptics tester (PET), is a small, man-portable field forward-looking IR (FLIR) MRTD test system. The PET was designed to accurately measure multiple spatial frequency minimum resolvable temperatures (MRTs) within minutes of power application. A novel technique is also used to determine if the thermal imaging system under test is mission capable, even if it is not performing to its design specification. >

L. Roque

Papers

A new approach to FLIR MRTD testing