The Proposal of a 2-DOF Resolver for Linear Motion

Document Type : Original Article

Authors

1 Master student, University of Science and Technology, Tehran, Iran

2 Associate Professor, University of Science and Technology, Tehran, Iran

Abstract

Nowadays electromagnetic systems with combined motions are increasingly used in industrial servomechanisms. These systems generally work with two-degree of freedom and their actuators employ permanent magnets (PMs) to improve the power density requirements. The position of the moving part’s center is required for optimal electronic commutation and control of the PM actuators. In this paper, determination of the coordinates of the mover’s center using 90-degree linear Selsyns (linear resolvers) is sought. Linear resolvers are position sensors that are compatible to work in harsh industrial environments. However, there are some challenges in using two individual linear resolvers for such applications. Therefore, in this paper after discussing those challenges, a new configuration is proposed to overcome them. The success of the proposed planar resolver is verified by 3-dimentional time stepping finite element analysis and experimental measurements.

Keywords

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References

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History

  • Receive Date: 02 May 2021
  • Revise Date: 02 January 2022
  • Accept Date: 02 February 2022

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