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A flux-coupled, dipolar ac/dc magnet

This article draft discusses the control of the motor speed and peak field amplitude of a flux-coupled dipolar AC/DC magnet. It explores fast hysteresis loops, averaging techniques, and necessary improvements for enhanced performance. Conclusions highlight requirements for efficient rotation rates and motor power in physics research.

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A flux-coupled, dipolar ac/dc magnet

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  1. A flux-coupled, dipolar ac/dc magnet H. Liu, D. Gopman and A.D. Kent Figures for Scientific Instrument article draft

  2. Diagram

  3. Control of the motor speed

  4. Control of the peak field amplitude

  5. Fast hysteresis: ~500 loops / minute

  6. 100x averaged hysteresis

  7. Conclusions • Should be good enough for an RSI • For a Physics article: • Must measure faster for the highest rotation rates • Need more powerful motor, more torque for slower rotation rates (see steppers) • Critical for exploration of a wide range of sweep rates

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