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Angle sensor with a ring waveguide as a physical measure

An angle sensor and waveguide technology, which is used in the transmission of sensing components, instruments, tire measurements, etc. using wave/particle radiation devices, which can solve the problems of complex manufacturing of microstructure technology and small structure size.

Active Publication Date: 2022-04-12
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Since the structural dimensions become smaller and smaller with increasing accuracy classes, the measuring tools must be manufactured with high precision in the range of 18 bits and mainly with very complex microstructural technology

Method used

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  • Angle sensor with a ring waveguide as a physical measure
  • Angle sensor with a ring waveguide as a physical measure
  • Angle sensor with a ring waveguide as a physical measure

Examples

Experimental program
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Embodiment Construction

[0057] according to figure 1 , the machine 1 has a shaft 2, and what is to be detected is the rotational angle or rotational position α of the shaft. An angle sensor 3 is provided for this purpose. according to figure 1 with figure 2 , the angle sensor 3 has a base body 4 in which a rotating element 5 is mounted. As a result, the rotary element 5 can be rotated about the axis of rotation 6 , ie the rotary element can be rotated by any angle greater and smaller than 360°. Thus, the rotary element 5 can in principle rotate through any desired number of full revolutions. The basic body 4 can be connected to the housing 7 of the machine 1 , for example via screws. The rotary element 5 can be connected to the shaft 2 of the machine 1 , for example likewise via screws. The connection of the rotary element 5 to the shaft 2 of the machine 1 is realized in such a way that the axis of rotation 6 coincides with the axis of rotation of the shaft 2 of the machine 1 as well as possib...

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Abstract

The invention relates to an angle sensor with a ring waveguide as a measuring scale, in which a rotary element is mounted in a basic body so as to be rotatable about an axis of rotation. The distribution circuit supplies part of the excitation signal generated by the excitation circuit as a transmission signal to the transmitting and receiving antennas and part of the excitation signal as a base signal to the evaluation circuit. The angle sensor has a waveguide. The transmit and receive antennas transmit electromagnetic waves into the waveguide based on the transmit signal. The rotating element has a terminal element that protrudes into the waveguide and is designed to be reflective at least on one side, so that electromagnetic waves incident on the reflective side of the terminal element are reflected on the reflective side of the terminal element and directed towards the transmitting and receiving antennas in the waveguide back reflection. The transmit and receive antennas receive the reflected waves. The resulting receive signal is fed to an evaluation circuit. An evaluation circuit determines the rotational position of the rotary element relative to a reference rotational position by evaluating the base signal and the received signal within a resolution region.

Description

technical field [0001] The invention relates to an angle sensor, [0002] - where the angle sensor has a substrate, [0003] - wherein the rotary element is mounted in the basic body in such a way that the rotary element can rotate about the axis of rotation. Background technique [0004] Angle sensors are necessary for many applications. For example, in electric motors the mechanical angle of rotation must be measured for positioning tasks and as feedback for current control. Optical, magnetic, inductive or capacitive angle sensors are often used, for example, in servo drives. In many cases, the angle sensor is a stand-alone component, wherein the base body of the angle sensor is connected to the base body of the machine whose rotational position is to be detected, and the rotating element of the angle sensor is also connected to the rotational axis of the machine. In some cases, angle sensors are integral components of machines. [0005] Irrespective of whether a sing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/48
CPCG01D5/48B60C23/0416G01B15/00G01S5/04
Inventor 马丁·迈尔于尔根·策特纳
Owner SIEMENS AG
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