A low-cost position sensing technique for linear switch reluctance motion system

Chow Norbert Cheung, Wai Cheun Gan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)


This paper presents a novel position sensing system for a linear switched reluctance motor. By measuring the magnetic flux differences on the fixed tooth track using two coiled devices aligned 90 degrees out of phase, the position and direction information of the moving platform can be obtained. To increase the resolution 16 times its original tooth pitch, a novel non-sinusoidal waveform interpolation technique is employed. The proposed sensing system is designed, fabricated and implemented on a linear variable reluctance motor platform. Results show that the proposed sensing system can produce reliable position information with high accuracy and repeatability, and at high pulse output rate. The proposed position measurement method is useful for both phase commutation and servo position feedback of the Linear Switched Reluctance Motor.
Original languageEnglish
Title of host publicationIEEE ICIT 2002 - 2002 IEEE International Conference on Industrial Technology
Subtitle of host publication"Productivity Reincarnation Through Robotics and Automation"
Number of pages6
ISBN (Electronic)0780376579
Publication statusPublished - 1 Jan 2002
EventIEEE International Conference on Industrial Technology, IEEE ICIT 2002 - Shangri-La Hotel, Bangkok, Thailand
Duration: 11 Dec 200214 Dec 2002


ConferenceIEEE International Conference on Industrial Technology, IEEE ICIT 2002

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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