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Generalization of the thermal model of infrared radiation sensors
Institution:1. Department of Computer Science and Engineering, Bengal Institute of Technology and Management, Santiniketan, West Bengal, India;2. Department of Computer and System Sciences, Visva Bharati University, Santiniketan, West Bengal, India;1. School of Computing and Electrical Engineering, Indian Institute of Technology (IIT) Mandi, Mandi, Himachal Pradesh 175001, India.;2. Electronics and Communication Engineering, Indian Institute of Technology (IIT) Roorkee, Roorkee, Uttarakhand, India.;1. State Key Laboratory of Fluid Power Transmission and Control, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China;2. Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China;3. Department of NanoEngineering, University of California, San Diego, CA 92093, USA;1. Department of Electrical Engineering, National Taipei University of Technology, Taipei, Taiwan;2. Graduate Institute of Electronics Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
Abstract:In many theories and applications, generalized models can give a good head start for further research where the implementation of new elements and/or boundary conditions could become quite complex. In this paper the development of a compact thermal model of an infrared sensor will be presented. This thermal model includes not only the thermal resistances and capacitances of the sensor structure itself but the radiative and convective thermal resistances to the ambience and between the sensor plate and the heat source (thermal transfer impedance) which is important when the heat source and the sensor are in close proximity. Limitations and the applicability of the proposed model are also discussed. We also aim to present how the proposed model can be used for other IR sensor structures as well.
Keywords:Thermal modelling  Thermal characterization  FIR sensors  Infrared sensor card  Radiative thermal transfer impedance
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