Analysis of Electromagnetic Nonlinearities in Stage Control of a Stepper Motor and Spool Valve

[+] Author and Article Information
Rich Burton, Paul Ukrainetz

Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Canada

Jian Ruan

Department of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, People’s Republic of China

J. Dyn. Sys., Meas., Control 125(3), 405-412 (Sep 18, 2003) (8 pages) doi:10.1115/1.1592812 History: Received April 25, 2002; Revised March 10, 2003; Online September 18, 2003
Copyright © 2003 by ASME
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Typical nonlinear characteristics in a stepper motor for one cycle in current
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Principle of stage control
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Graphical definition of the error rates
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Experimental arrangement
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Saturation under different current supply: a two steps, ir/imax=2;b eight steps, ir/imax=2;c two steps, ir/imax=0.75;d eight steps, ir/imax=0.75
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Input-output characteristics under different pressures



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