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Thermal optimization of a laser scanner

  • Dissipation of heat can be a major challenge when applying sensor systems outdoors under varying environmental conditions. Typically, complex software and knowledge is needed to optimize thermal management. In this paper it is shown how the thermal optimization of a LiDAR (light detection and ranging) sensor can be performed efficiently. This approach uses standard CAD (computer aided design) software, which is readily available, and saves time and cost as the thermal design can be optimized before experimental realisation. A four-step process was developed and realized: (i) Measurement of the thermal energy distribution of the current sensor design; (ii) Simulation of the time-dependant thermal behaviour using standard CAD software; (iii) Simulation of a thermally optimized design. This was compared quantitatively with the original design and was also used for verification of sufficient increase in heat dissipation; (iv) Experimental realisation and verification of the optimized design. It could be shown that the optimized prototype shows significantly improved thermal behaviour in accordance with the predictions from the simulations. The new LiDAR sensor shows lower heat generation and optimized dissipation of thermal energy which proofs the applicability of the approach to complex sensors.

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Author:Philip Hanisch, Jannis Gangelhoff, Philipp von Olshausen, Ludwig Eicher, Alexander Reiterer
Parent Title (English):Environmental Effects on Light Propagation and Adaptive Systems V, 5-8 September 2022, Berlin, Germany (Proceedings of SPIE; 12266)
Publisher:Society of Photo-Optical Instrumentation Engineers (SPIE)
Place of publication:Bellingham, Wash.
Document Type:Conference Proceeding
Year of Publication:2022
Contributing Corporation:Fraunhofer-Institut für Physikalische Messtechnik IPM, Freiburg
Release Date:2023/01/17
Tag:Thermal simulation; Laser scanning; LiDAR
Page Number:8
Article Number:122668
Relevance:Keine peer reviewed Publikation (Wissenschaftlicher Artikel und Aufsatz, Proceeding, Artikel in Tagungsband)
Open Access?:Nein
Licence (German):License LogoUrheberrechtlich geschützt