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Rotating-Coil Measurement System for Small-Bore-Diameter Magnet Characterization.

Anna Lauria1,2, Pasquale Arpaia2,3, Marco Buzio2

  • 1Department of Electronics and Telecommunications, Polytechnic of Turin, 10129 Turin, Italy.

Sensors (Basel, Switzerland)
|November 11, 2022
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Summary
This summary is machine-generated.

This study introduces a novel rotating-coil system for precisely measuring multipolar fields in small-aperture particle accelerator magnets. The system utilizes a high-aspect-ratio PCB magnetometer for detailed quadrupole magnet characterization.

Keywords:
PCB coilmagnetic measurementquadrupole magnetrotating coil

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Area of Science:

  • Physics
  • Engineering
  • Materials Science

Background:

  • Rotating-coil measurement systems are essential for characterizing particle accelerator magnets.
  • Small bore diameters in magnets present unique design challenges for measurement transducers.

Purpose of the Study:

  • To present a novel rotating-coil measurement system for complete characterization of small-bore quadrupole magnets (26 mm).
  • To address the design challenges of high-aspect-ratio PCB magnetometers within confined spaces.

Main Methods:

  • Development of a novel mechanical design incorporating a commercial carbon fiber tube for a high-aspect-ratio PCB magnetometer.
  • Utilization of standard, commercially available components with simplified control and post-processing software.
  • Cross-calibration of the system against a stretched-wire system and another rotating-coil system.

Main Results:

  • Successful characterization of quadrupole magnets with a 45 mm inner bore diameter was achieved.
  • The system demonstrates precision suitable for detailed multipolar field measurements.
  • The novel PCB magnetometer design accommodates a 30% higher aspect ratio than state-of-the-art transducers.

Conclusions:

  • The developed rotating-coil system offers a viable solution for precise characterization of small-bore quadrupole magnets.
  • The innovative mechanical and transducer design overcomes limitations of previous systems.
  • The use of standard components and simplified software enhances accessibility and applicability.