Measurement of Thermal Behavior of Detector Array Surface with the Use of Microscopic Thermal Camera
Modern infrared cameras are constructed with two main types of infrared detectors: photon detectors and thermal detectors. Because of economic reasons, vast numbers of modern thermal cameras are constructed with the use of infrared microbolometric detectors which belong to the group of thermal detectors. Thermal detectors detect incident infrared radiation by measuring changes of temperature on the surface of a special micro-bridge structure. Thermal detectors, like microbolometric detectors on one hand should be sensitive to changing temperature to accurately measure incoming infrared radiation from the observed scene, on the other hand there are many other phenomena that change the temperature of the detector and influence the overall response of the detector. In order to construct an accurate infrared camera, there is a need to evaluate these phenomena and quantify their influence. In the article the phenomenon of self heating due to the operation of the readout circuit is analyzed on an UL 03 19 1 detector. The theoretical analysis is compared with the results of conducted measurements. Measurements with a type SC7900VL thermographic camera were performed to measure the thermodynamic behavior of the UL 03 19 1 detector array.
Tissot, J. L., Trouilleau, C., Fieque, B., Crastes, A., Legras, O. (2006). Uncooled microbolometer detector: recent developments at ULIS. Opto-Electron Review, 14(1), 25-32.
Bieszczad, G., Orżanowski, T., Sosnowski, T., Kastek, M. (2009). Method of detectors offset correction in thermovision camera with uncooled microbolometric focal plane array, Proc. of SPIE, 7481, 74810O.
Orżanowski, T., Madura, H. (2009). Test and evaluation of reference-based nonuniformity correction methods for microbolometer infrared detectors. Opto-electronics Review, 18 (1), 91-94.
Trouilleau, C., Crastes, A., Fièque, B., Legras, O., Tissot, J. L. (2005). Uncooled microbolometer detector: recent developments at ULIS. Proc. of SPIE, 5978, 597815.
Tissot, J. L., Fieque, B., Trouilleau, C., Robert, P., Crastes, A., Minassian, C., Legras, O. (2006). First demonstration of 640×480 uncooled amorphous silicon IRFPA with 25 μm pixel-pitch, Proc. of SPIE, 6206, 620618.
Trouilleau, C., Crastes, A., Legras, O., Tissot, J. L., Chatard, J. P. (2005). 35 μm pitch at ULIS, a breakthrough. Proc. of SPIE, 5783, 578-585.
Mendel, C., Martin, J. L., Ouvrier-Buffet, J. L., Tissot, J. L., Vilain, M., Yon, J. J. (1999). Amorphous silicon based uncooled microbolometer IRFPA. Proc. of SPIE, 3698, 276-283.
Yon, J. J., Mottin, E., Tissot, J. L. (2008). Latest amorphous silicon microbolometer developments at LETI-LIR. Proc. of SPIE, 6940, 69401W.
Crastes, A., Tissot, J. L., Vilain, M., Legras, O., Tinnes, S., Minassian, C., Robert, P., Fieque, B. (2008). Uncooled amorphous silicon 1/4 VGA IRFPA with 25 μm pixel-pitch for high end applications. Proc. of SPIE, 6940, 69401V.
Madura, H., Kastek, M., Sosnowski, T., Orżanowski, T. (2010). Pyrometric method of temperature measurement with compensation for solar radiation. Metrology and Measurement Systems, 17(1), 77-86.
Madura, H., Kastek, M., Piątkowski, T. (2007). Automatic compensation of emissivity in three-wavelength pyrometers. Infrared Physics & Technology, 51(1), 1-8.
Bielecki, Z., Chrzanowski, K., Matyszkiel, R., Piątkowski, T., Szulim, M. (1999). Infrared pyrometer for temperature measurement of objects of both wavelength- and time-dependent emissivity. Optica Applicata, 29(3), 284-292.
Misook, Ahn, Yong-Hee, Han, Sung, Moon. (2007). A novel infrared absorbing structure for uncooled infrared detector. Current Applied Physics, 7(6), 617-621.
Hwang, C. H., Lee, Y. S., Lee, H. L. (2006). High-Performance Pixelwise Readout Integrated Circuits for Microbolometer. Proc of Electronics, Circuits and Systems, ICECS '06. 13th, 1140-1143.
Jo, Y., Kwon, I. L., Kim, D. S., Shim, H. B., Lee, H. C. (2011). A self-protecting uncooled microbolometer structure for uncooled microbolometer. Proc. of SPIE, 8012, 80121O.