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Novel 3D Hall Sensor Based Position Sensor for Intelligent Car Headlamp

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Abstract:

Intelligent car headlamps enable a number of innovative safety and comfort functions of modern vehicles. With their interplay between sensorics and actuating they form complex mechatronic systems that benefit from MEMS technology. The use of a novel 3D Hall based position sensor is discussed. In this application, the attitude of a light projection module, which governs the light distribution on the road surface, is controlled in two directions by a single Hall sensor. Different concepts for this application were investigated. In this paper the findings of a systematic variation of the positioning of sensor and magnet, respectively, are presented.

Keywords: 3D MEASUREMENT; HALL SENSOR; INTELLIGENT HEADLAMP; MAGNET; POSITION SENSOR

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/sl.2009.1070

Publication date: June 1, 2009

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  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
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