Linear and Angular Position Sensing for TwoDegrees-of-Freedom Motor

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International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering , Engineering, Electrical & Electronic

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eISSN: 1178-5608

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VOLUME 7 , ISSUE 5 (December 2014) > List of articles

Special issue ICST 2014

Linear and Angular Position Sensing for TwoDegrees-of-Freedom Motor

Yoshiki Kanno / Yasukazu Sato *

Keywords : position sensor; optical sensor; multi-degrees-offreedom motor; switched reluctance motor

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 7, Issue 5, Pages 1-6, DOI: https://doi.org/10.21307/ijssis-2019-115

License : (CC BY-NC-ND 4.0)

Published Online: 15-February-2020

ARTICLE

ABSTRACT

A linear and rotational two-degrees-of-freedom switched reluctance motor (2DOF-SRM) has been developed to independently control linear and rotational actuation on one actuator. The 2DOF-SRM drive system requires information on the linear and angular positions of the rotor for its control. The approximate angular position of the prototype 2DOF-SRM rotor was detected by the built-in photo-switches that utilize the salient pole of the rotor as the sensor target. The linear position of the rotor was detected by an external linear position sensor mechanically connected to the output shaft. To simplify this sensing system and improve sensing resolution, this paper presents a noncontact optical sensing method to simultaneously detect linear and angular positions of an actuating 2DOF-SRM rotor. The sensing principle for detecting the combined linear and rotational motion of the 2DOF-SRM and the performance of the linear and angular position sensing system are reported.

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REFERENCES

[1] Y. Sato, “Development of a 2-Degree-of Freedom Rotational / Linear Switched Reluctance Motor,” IEEE Trans. Magn., vol.43, no.6, 2007, pp.2564-2566

[2] T.J.E Miller, Switched Reluctance Motors and Their Control, Oxford: Clarendon, 1993.

[3] I. Boldea, S.A. Nasar, Linear Electric Actuators and Generators, Cambridge University Press, 1997, pp. 163-167.

[4] C.T. Liu, T.S. Chiang, “Design and Performance Evaluation of a Microlinear Switched-Reluctance Motor,” IEEE Trans. Magn., vol.40, no. 2, 2004, pp.806-809.

[5] R. S. Berns, Billmeyer and Saltzman's Principles of Color Technology, Wiley-Interscience, 2000.

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