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Angular magnetic field sensor for scanner

A magnetic field sensor and scanner technology, applied in the field of optical scanners, can solve problems such as time drift

Inactive Publication Date: 2019-11-29
BLICKFELD GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

possible time drift

Method used

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  • Angular magnetic field sensor for scanner
  • Angular magnetic field sensor for scanner
  • Angular magnetic field sensor for scanner

Examples

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Embodiment Construction

[0059] Through the description of the following exemplary embodiments, the characteristics, characteristics and advantages of the above-mentioned invention and the method for realizing these characteristics and advantages will become clearer and more clearly understandable, and these exemplary embodiments will be described in more detail with reference to the accompanying drawings instruction of.

[0060] Hereinafter, the present invention will be described in more detail on the basis of preferred embodiments with reference to the accompanying drawings. In the drawings, the same reference numerals designate the same or similar elements. The drawings are schematic illustrations of various embodiments of the invention. Elements shown in the figures are not necessarily true to scale. Rather, the various elements shown in the figures may be reproduced in such a manner that their function and general purpose will be understood by those skilled in the art. The connections and cou...

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PUM

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Abstract

A scanner (90) comprises a scanning unit (99, 99-1, 99-2) having an elastic element (101, 101-1, 101-2, 102, 102-1, 102-2) which extends between a base (141) and a deflection unit (142, 150), whereinthe scanning unit (99, 99-1, 99-2) is set up to deflect light (180) at the deflection unit (142, 150) at different angles (901, 902) by means of torsion (502) of the elastic element (101, 101-1, 101-2, 102, 102-1, 102-2), a magnet (660) which is set up to generate a stray magnetic field, and an angular magnetic field sensor (662) which is arranged in the stray magnetic field and is set up to output a signal indicative of the torsion (502).

Description

technical field [0001] In general, various examples of the invention relate to optical scanners. In particular, various examples of the invention relate to laser scanners, such as may be used for LIDAR measurements. Background technique [0002] Measuring the distance of objects is required in many technical fields. For example, it can be integrated with autonomous driving applications to detect objects in the environment around the vehicle; in particular, to determine the distance from the vehicle to the object. [0003] One technology used to measure the distance of objects is the so-called LIDAR technology (called Light Detection and Ranging, sometimes also called LADAR in English). In this process, pulsed laser light is emitted from the transmitter, and objects in the environment reflect the laser light, so that these reflections can be measured. By determining the travel time of the laser light, the distance to the object can be determined. [0004] To detect object...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481G02B26/08G02B26/10
CPCG01S17/42G01S7/4817G02B26/0833G02B26/0858G02B26/105G01B7/30G01S17/06G02B26/101G01L3/102
Inventor 弗洛里安·佩蒂特
Owner BLICKFELD GMBH
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