Electronics Optics & Control, Volume. 20, Issue 12, 63(2013)
Design of a Minitype and HighPrecision Infrared Blackbody Radiator
An infrared blackbody radiator is a pivotal part of test and calibration equipment for an infrared system.To meet the requirements of minitypelight weight and highprecision for portable field test equipment of the infrared imagerwe designed the structurecontrol circuit as well as the software of blackbody radiator.The blackbody radiator componentsmall and highly efficientwas composed of redcopper radiant areathermoelectric cooler and thermal sink.The temperature acquisition precision of 0.0122 ℃ was realized by using the bridge for measuring temperature driven by the constant current.The conversion precision of 0.01 ℃ between the acquired voltage and the real temperature was achieved by using the indexing function of platinum resistance and the Newton iteration method.Test result shows that the emissivitytemperature control precision and the size of the IR blackbody radiator can meet the requirementand the infrared blackbody radiator has successful application effect.
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CAO Haiyuan, WAN Qiang, CHU Hua, MI Chaowei. Design of a Minitype and HighPrecision Infrared Blackbody Radiator[J]. Electronics Optics & Control, 2013, 20(12): 63
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Received: Oct. 8, 2012
Accepted: --
Published Online: Dec. 17, 2013
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