Mr. Philip Hanisch Profile

Philip Hanisch

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Proceedings Article | 26 October 2022 Presentation + Paper

Thermal optimization of a laser scanner

Philip Hanisch, Jannis Gangelhoff, Philipp von Olshausen, Ludwig Eicher, Alexander Reiterer

Proceedings Volume 12266, 1226608 (2022) https://doi.org/10.1117/12.2635948

KEYWORDS: Computer aided design, Laser scanners, Temperature metrology, Sensors, Solid modeling, Modulators, Fluctuations and noise, Prototyping, Mirrors, LIDAR

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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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