Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Position detecting device and signal processing device and method thereof

A signal processing device and detection device technology, applied in the field of sensors, can solve the problems of weak impact resistance, limited scope of application, high processing cost, etc., and achieve the effects of simple manufacturing process, reduced effective area, and low cost

Inactive Publication Date: 2010-11-03
HANGZHOU SES MACHINERY
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The technical problem to be solved by the present invention is to provide a position detection device and its signal processing circuit and processing method in view of the shortcomings of the prior art such as weak impact resistance, high processing cost, limited scope of application and low precision. The position detection device has fast response, high processing accuracy, low cost and simple manufacturing process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Position detecting device and signal processing device and method thereof
  • Position detecting device and signal processing device and method thereof
  • Position detecting device and signal processing device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] In the first embodiment, 3 magnetic induction elements are provided corresponding to the second magnetic steel ring, and 2 magnetic induction elements are provided corresponding to the first magnetic steel ring.

[0083] Due to the magnetization sequence of the magnetic poles of the second magnetic steel ring, the outputs of the n magnetic induction elements are in the form of Gray codes. The polarity of the magnetic pole is that the first digit of the Gray code is "0" corresponding to the "N / S" pole, and the first digit is "1" corresponding to the "S / N" pole. Therefore, in this embodiment, since n is 3, it is obtained as Figure 12 As shown in the code, 6 codes are obtained, that is, 6 poles are obtained, and the magnetization sequence is as follows Figure 13 As shown, the magnetic sensing elements are evenly distributed around for reading. The positional relationship between the second magnetic steel ring, the magnetic conduction ring and the magnetic induction ele...

Embodiment 2

[0101] Different from Embodiment 1, in this embodiment, 4 magnetic induction elements are provided corresponding to the first magnetic steel ring, and the four magnetic induction elements H 1 、H 2 、H 3 、H 4 The angle between them is 90° / 6, and the structural relationship between the first magnetic steel ring, the magnetic permeable ring and the magnetic induction element is as follows Figure 15 shown.

[0102] Figure 19 Shown is a circuit block diagram of the signal processing device when four magnetic induction elements are provided corresponding to the first magnetic steel ring. The output signals of the sensors 1_1 and 1_2 are connected to the amplifier circuit 2_1 for differential amplification, the output signals of the sensors 1_3 and 1_4 are connected to the amplifier circuit 2_2 for differential amplification, and then connected to the A / D converters 3_1 and 3_2. The case of a magnetic induction element.

[0103] Wherein, the function of the second combiner 7 i...

Embodiment 3

[0106] This embodiment differs from Embodiments 1 and 2 in that three magnetic induction elements are provided corresponding to the first magnetic steel ring, and three magnetic induction elements H 1 、H 2 、H 3 The angle between them is 120° / 6, such as Figure 20 as shown,

[0107] Figure 21 Shown is a circuit block diagram of the signal processing device when three magnetic induction elements are provided corresponding to the first magnetic steel ring. The processing process is basically the same as the previous two embodiments, except that since the synthesizer 7 has three input signals, the processing of signals D and R is slightly different from the previous two embodiments. In the present embodiment, the first synthesizer 7 processes the signals with the following principles: first judge the matching bits of the three signals, and compare the numerical values ​​of the signals with the same matching bits, and the smaller value is used for the output signal D, the sign...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a position detecting device and a signal processing device and method thereof. The position detecting device comprises a rotor and a stator covering the rotor inside, wherein the rotor comprises a first magnetic steel ring and a second magnetic steel ring which are fixed on a rotation axis; n-numbered magnetic induction elements which are uniformly distributed and correspond to the second magnetic steel ring, and m-numbered magnetic induction elements which are distributed at a certain angle and correspond to the first magnetic steel ring are arranged on the stator; and when the rotor carries out rotational motion relative to the stator, the magnetic induction elements convert the sensed magnetic signals into voltage signals and output the voltage signals to the signal processing device. In the invention, the magnetic induction elements fixed on the circumference of the stator are utilized to induce magnetic filed intensity variation caused by rotation of the magnetic steel fixed on the axis to output the voltage signals, and the voltage value is used for judging the rotation angle of the axis, thus realizing position detection. The invention has the advantages of quick response, high processing precision, low cost, simple manufacturing process, etc.

Description

technical field [0001] The invention relates to a sensor, in particular to a position detection device for precise position control and a signal processing device and method thereof. Background technique [0002] In industrial control, in order to achieve precise motor position, a position sensor is used to convert physical quantities such as the rotation angle and angular velocity of the motor into electrical signals. This type of position sensor is usually called an encoder. With the development of industrial automation, the transformation of DC motors to AC motors and the transformation of analog control to digital control are inseparable from the development of encoders. The manufacturing technology and signal processing level of encoders directly affect the level of automation. [0003] At present, the encoders used in the field of engineering technology are mainly photoelectric encoders, and there are two types of photoelectric encoders: incremental and absolute. In a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/12G01D5/249G01B7/30
CPCG01D15/00G01D1/00
Inventor 郝双晖郝明晖
Owner HANGZHOU SES MACHINERY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com