Advanced numerical investigation of the heat flux in an array of microbolometers

Abstract The investigation of the thermal properties of an array of microbolometers has been carried out by mean of two independent numerical analysis, respectively the Direct-Simulation Monte Carlo (DSMC) and the classic diffusive approach of the Fourier’s equation. In particular, the thermal dissi...

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Autores principales: Matteo Stocchi, Davide Mencarelli, Luca Pierantoni, Alexander Göritz, Canan Baristiran Kaynak, Matthias Wietstruck, Mehmet Kaynak
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2019
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Acceso en línea:https://doaj.org/article/d28aeb84b1d74d4d8ac68f22d69169ac
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Sumario:Abstract The investigation of the thermal properties of an array of microbolometers has been carried out by mean of two independent numerical analysis, respectively the Direct-Simulation Monte Carlo (DSMC) and the classic diffusive approach of the Fourier’s equation. In particular, the thermal dissipation of a hot membrane placed in a low-pressure cavity has been studied for different values of the temperature of the hot body and for different values of the pressure of the environment. The results for the heat flux derived from the two approaches have then been compared and discussed.