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Magnetic encoder magnetic drum, manufacturing method thereof and usage method thereof

A magnetic encoder and magnetic drum technology, which is applied in the manufacturing field of magnetic encoder drums and magnetic encoder drums, can solve problems such as the inability to provide UVW three-phase signals, and achieve the effect of stable output signals

Inactive Publication Date: 2016-03-09
于广华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the inability to provide UVW three-phase signals, no reluctance encoders are currently used on servo motors

Method used

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  • Magnetic encoder magnetic drum, manufacturing method thereof and usage method thereof
  • Magnetic encoder magnetic drum, manufacturing method thereof and usage method thereof
  • Magnetic encoder magnetic drum, manufacturing method thereof and usage method thereof

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Embodiment Construction

[0023] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0024] The embodiment of the present invention proposes a figure 1 , figure 2 , image 3 The magnetic encoder magnetic drum shown includes an annular cylinder, and the annular cylinder is provided with a UVW signal pole extending along the axial direction of the annular cylinder body, and the annular cylinder is also provided with a radial pole along the diameter of the annular cylinder body. To the extended AB signal pole and the null pole written synchronously with the AB signal pole.

[0025] Among them, such as figure 2 As shown, the UVW signal poles are distributed along the axial direction of the annular cylinder, including N poles and S poles that are alternately and continuously distributed.

[0026] Among them, such as image 3 As shown, ...

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PUM

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Abstract

The invention provides a magnetic encoder magnetic drum, a manufacturing method thereof and a usage method thereof. The magnetic encoder magnetic drum comprises an annular cylinder. The annular cylinder is provided with a UVW signal magnetic pole extending in the axial direction of the annular cylinder, and the annular cylinder is further provided with an AB signal magnetic pole extending in the radial direction of the annular cylinder and a zero magnetic pole which is synchronous with the AB signal magnetic pole in writing. The manufacturing method comprises the steps of: utilizing a first single-magnetic-pole type magnetic head to carry out magnetizing on an axial surface of the annular cylinder so as to form the UVW signal magnetic pole, wherein the UVW signal magnetic pole is arranged in the axial direction of the annular cylinder and comprises N poles and S poles which are alternately and continuously distributed; and utilizing a double-magnetic-pole type magnetic head to carry out magnetizing on a radial surface of the annular cylinder so as to form the AB signal magnetic pole, and simultaneously utilizing a second single-magnetic-pole type magnetic head to carry out magnetizing on the radial surface of the annular cylinder so as to form the zero magnetic pole, wherein the magnetic pole generating AB signals is closed to the magnetic pole, generating UVW signals, on the axial surface of the magnetic drum, and the magnetic pole generating Z signals is far away from the magnetic pole, generating UVW signals, on the axial surface of the magnetic drum.

Description

technical field [0001] The invention relates to the technical field of magnetic materials, in particular to a magnetic encoder drum and a method for manufacturing and using the magnetic encoder drum. Background technique [0002] The servo motor encoder is a sensor installed on the servo motor to measure the position of the magnetic pole and the rotation angle and speed of the servo motor. According to different physical media, servo motor encoders can be divided into photoelectric encoders and magnetoelectric encoders. Magnetoelectric encoders have the characteristics of reliability, low price, and anti-pollution, and have been paid more and more attention in recent years. [0003] The servo motor encoder is a sensor installed on the servo motor to measure the position of the magnetic pole and the rotation angle and speed of the servo motor. The basic function of the servo encoder is the same as that of the ordinary encoder. The rotary incremental encoder outputs when rota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/12
CPCG01D5/12
Inventor 于广华
Owner 于广华