Login Register Cart 0
Generic placeholder image

Recent Patents on Engineering

Editor-in-Chief

ISSN (Print): 1872-2121
ISSN (Online): 2212-4047

Back
Journal Home About Journal Editorial Board Journal Insight Current Issue Volumes/Issues
Subscribe
Review Article

Recent Patents on Magnetic Encoder and its use in Rotating Mechanism

Author(s): Lei Wang*, Qimin Ren, Jingang Jiang, Hongxin Zhang and Yongde Zhang

Volume 13, Issue 3, 2019

Page: [194 - 200] Pages: 7

DOI: 10.2174/1872212112666180628145856

Price: $65

Abstract

Background: The application of magnetic encoder relieves the problem of reliable application of servo system in vibration field. The magnetic encoder raises the efficiency and reliability of the system, and from structural considerations, the magnetic encoder is divided into two parts: signal conversion and structural support.

Objective: In order to improve the accuracy of the magnetic encoder, its structure is constantly improving. To evaluate a magnetic encoder, the accuracy is a factor, meanwhile, the structure of magnetic encoder is one of the key factors that make difference in the accuracy of magnetic encoder. The purpose of this paper is to study the accuracy of different structures of magnetic encoder.

Methods: This paper reviews various representative patents related to magnetic encoder.

Results: The differences in different types of magnetic encoders were compared and analyzed and the characteristics were concluded. The main problems in its development were analyzed, the development trend forecasted, and the current and future developments of the patents on magnetic encoder were discussed.

Conclusion: The optimization of the magnetic encoder structure improves the accuracy of magnetic encoder. In the future, for wide popularization of magnetic encoder, modularization, generalization, and reliability are the factors that practitioner should pay attention to, and more patents on magnetic encoder should be invented.

Keywords: Hall, magnetic encoder, magnetic field, mechanical structure, servo system, rotating mechanism.

Graphical Abstract

[1]
L. Wang, Y.D. Zhang, S.H. Hao, B.Y. Song, M.H. Hao, and Z.L. Tang, "Study on high precision magnetic encoder based on PMSM sensorless control", Sensor. Rev., vol. 36, pp. 267-276, 2016.
[2]
X.G. Wang, H.T. Wang, H.Q. Xie, D.Z. Luo, and K. Yang, "Design of magnetic encoder based on reconstructing and mapping looking-up table", 19th International Conference on Electrical Machines and Systems.Chiba, Japan 2016
[3]
T. Feng, S.H. Hao, M.H. Hao, and J.L. Wang, "Development of a combined magnetic encoder", Sensor. Rev., vol. 36, pp. 386-396, 2016.
[4]
Khanjanzadeh A.Rezazadeh., and M. Sedighizadeh, "Using harmony search algorithm for optimization the component sizing of plug-in hybrid electric vehicle", Int. Rev. Electr. Eng., vol. 6, pp. 142-150, 2011.
[5]
S.J. Zebardast, M.S. Maleh, N. Ghadimi, and P. Farhadi, "Comprehensive approach for locating and determining the number of HV/MV substations and service area based on particle swarm algorithm", Int. Rev. Modell. Simulations, vol. 4, pp. 837-842, 2011.
[6]
J. Lara, J.H. Xu, and A. Chandra, "A novel algorithm based on polynomial approximations for an efficient error compensation of magnetic analog encoders in PMSMs for EVs", IEEE Trans. Indust. Electr., vol. 63, pp. 3377-3388, 2016.
[7]
H. Torkaman, H. Amiri, and N. Ghadimi, "Comparison of two novel sensorless methods for indirect rotor position estimation in a field assisted switched reluctance motor", Int. Rev. Electr. Eng., vol. 6, pp. 2939-2946, 2011.
[8]
H. Torkaman, E. Afjei, N. Ghadimi, and A. Gorgani, "Comparative Electromagnetic Evaluation of Different Structures of Switched Reluctance Motors", Int. Rev. Electr. Eng., vol. 7, pp. 3885-3890, 2012.
[9]
B.H. Eric, "Self-Centering for Encoder Device", U.S. Patent 20,160, 056, 691, 2016.
[10]
S. Volker, "Encoder for a compact revolution on transmitter and electric motor with a compact revolution transmitter", U.S. Patent 20, 140, 354, 118, 2014.
[11]
F. Qiu, "Absolute magnetic encoder", CN Patent 202885841U, April 17,, 2013.
[12]
L. Wang, S. H. Hao, and M. H. Hao, "A self-correcting device and method for magnetic encoder, and magnetic encoder", CN Patent 103837169A,, 2014.
[13]
Y. P. Wang, "A differential shaft angle magnetic encoder. Changzhou Institute of Technology", CN Patent 201397144Y, 2010.
[14]
L. Wang, S. H. Hao, and M. H. Hao, "A double Hall signal sampling magnetic encoder", CN Patent 205642281U. 2016
[15]
T. Toru, U. Shintarou, D. Pascal, and P. Cyril, "Magnetic encoder", U.S. Patent 9, 250, 102, 2016.
[16]
M.A. Klecka, "Magnetic encoder assembly", EP Patent 3, 088, 849, 2012.
[17]
F. L. Ni, S. C. Shi, and H. Liu, "An absolute position magnetic encoder with axial magnetization of large center hole", CN Patent 105387879A, 2016.
[18]
Z. Lin, Z. L. Zheng, and H. J. Chen, "A magnetic encoder", CN Patent 205079777U, 2016.
[19]
L. Zheng, "A magnetic encoder", CN Patent 205808430U,, 2016.
[20]
M. F. Wu, and S. Wang, "A Hall sensor based magnetic encoder", CN Patent 206740150U, 2017.
[21]
J. G. Deak, J. L. Wei, and J. F. Liu, "Absolute magnetic rotating encoder", EP Patent 2952857A2, 2015.
[22]
X. H. You, "An integrated geared motor with a magnetic encoder and electromagnetic brake", CN Patent 205882962U,, 2017.
[23]
Z. F. Wang, B. Shang, and Z. Q. Gao, "A permanent magnet brushless DC motor with a magnetic encoder", CN Patent 106451928A,, 2017.
[24]
J. C. Pang, and W. Yang, "A pressure gauge in the use of magnetic encoder technology to achieve the pressure value of the conversion equipment", CN Patent 106338359A, 2017.

Rights & Permissions Print Cite
Article Metrics
31
2
1
© 2024 Bentham Science Publishers | Privacy Policy