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Experimental Demonstration of Stray-Field Immunity beyond 5 mT for an Automotive-Grade Rotary Position Sensor

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Melexis, 2022 Bevaix, Switzerland
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Melexis, 8900 Ieper, Belgium
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Melexis, 3980 Tessenderlo, Belgium
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Author to whom correspondence should be addressed.
Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018.
Proceedings 2018, 2(13), 763; https://doi.org/10.3390/proceedings2130763
Published: 10 December 2018
(This article belongs to the Proceedings of EUROSENSORS 2018)
This paper experimentally demonstrates the stray-field robustness capability of a novel Hall-based rotary position sensor concept (Huber, S., et al, 2018). The sensor targets safety-related automotive applications, for example powertrain and power steering. In these applications, the safety requirement specifies a maximum stray-field induced error of 0.4°. Therefore, the robustness in corner cases needs to be assessed. We demonstrate the stray-field immunity in multiple corner cases for temperature from −40 °C up to 160 °C and over lifetime. The impact of a uniform 5 mT stray field over all conditions (3σ) is shown to be less than 0.25°. The fully-integrated automotive-qualified sensor is implemented in a 0.18-μm CMOS technology, and achieves 0.7° of angular accuracy.
Keywords: hall effect; position sensor; automotive electronics hall effect; position sensor; automotive electronics
MDPI and ACS Style

Dupré, N.; Dubrulle, O.; Huber, S.; Burssens, J.-W.; Schott, C.; Close, G. Experimental Demonstration of Stray-Field Immunity beyond 5 mT for an Automotive-Grade Rotary Position Sensor. Proceedings 2018, 2, 763. https://doi.org/10.3390/proceedings2130763

AMA Style

Dupré N, Dubrulle O, Huber S, Burssens J-W, Schott C, Close G. Experimental Demonstration of Stray-Field Immunity beyond 5 mT for an Automotive-Grade Rotary Position Sensor. Proceedings. 2018; 2(13):763. https://doi.org/10.3390/proceedings2130763

Chicago/Turabian Style

Dupré, Nicolas; Dubrulle, Olivier; Huber, Samuel; Burssens, Jan-Willem; Schott, Christian; Close, Gael. 2018. "Experimental Demonstration of Stray-Field Immunity beyond 5 mT for an Automotive-Grade Rotary Position Sensor" Proceedings 2, no. 13: 763. https://doi.org/10.3390/proceedings2130763

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