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1. 发明授权

US06240652B1 Optoelectronical position detection 失效
标题翻译：光电位置检测
公开(公告)号：US06240652B1
公开(公告)日：2001-06-05
申请号：US09353472
申请日：1999-07-13
申请人： Ralf Böbel , Frank Bläsing
发明人： Ralf Böbel , Frank Bläsing
IPC分类号： G11C1142
CPC分类号： B62D15/02 , G01D5/34723
摘要： An optoelectronic position detecting device for determining the absolute path or angle of two bodies which are moved relative to each other, comprising a light source 3, a transmitter element 2 which is partially exposed to light by the light source 3 and comprises a coding and which transmitter element 2 is coupled to the movement of the movable body, wherein the coding is provided in the form of a scanning trace 6, which is produced by virtue of the exposure to light, and a reference trace 7, and comprising a photosensitive line sensor 4 which is disposed in a fixed manner with respect to the transmitter element 2 for the purpose of scanning the code traces 6, 7 of the transmitter element 2, which output signals of the line sensor 4 influence an electronic evalutating unit for the purpose of determining the absolute path or angle, is determined by virtue of the fact that the transmitter element 2 is formed as a light-guiding body, into whose edge peripheral surface are coupled the light beams emitted by the light source 3, which transmitter element 2 comprises reflection surfaces R1, R2 for the purpose of forming the code traces, on which reflection surfaces the coupled-in light beams of the coding are correspondingly reflected out of the transmitter element 2 and towards the photosensitive surface of the line sensor 4. It is particularly expedient to use this type of optoelectronic position detecting device as a steering angle sensor for the purpose of determining the angle position of the steering wheel of a motor vehicle.
摘要翻译：一种用于确定相对于彼此移动的两个物体的绝对路径或角度的光电位置检测装置，包括光源3，由光源3部分地暴露于光的发射器元件2，并且包括编码和发射器元件2耦合到可移动体的移动，其中编码以由曝光产生的扫描迹线6和参考迹线7的形式提供，并且包括感光线传感器 4，其以相对于发射器元件2的固定方式设置，用于扫描发射器元件2的代码迹线6,7，其输出线传感器4的信号影响电子评估单元以确定绝对路径或角度由以下事实确定：发射器元件2形成为导光体，其边缘外周面与其相连接由光源3发射的光束，该发射器元件2包括用于形成代码迹线的反射表面R1，R2，其上的反射表面将编码的耦合入的光束相应地从发射器元件2反射出来并且朝向线传感器4的感光表面。为了确定机动车辆的方向盘的角度位置，使用这种类型的光电位置检测装置作为转向角传感器是特别有利的。

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