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Integrator Drift Compensation of Magnetic Flux Transducers by Feed-Forward Correction.

  • Amodeo M Department of Electronics and Telecommunications (DET), Polytechnic University of Turin, 10138 Turin, Italy.
  • Arpaia P Instrumentation and Measurement Laboratory for Particle Accelerator Laboratory (IMPALab), Department of Electrical Engineering and Information Technology (DIETI), University of Naples Federico II, 80100 Naples, Italy.
  • Buzio M Technology Department, CERN, 1217 Geneva, Switzerland.
  • 2019-12-15
Published in:
  • Sensors (Basel, Switzerland). - 2019
Nuclear Magnetic Resonance (NMR)
integrator drift
magnetic measurements
magnetic sensor
magnets
particle accelerator
English Integrator drift is a problem strongly felt in different measurement fields, often detrimental even for short-term applications. An analytical method for modelling and feed-forward correcting drift in magnetic flux measurements was developed analytically and tested experimentally. A case study is reported on the proof of principle as a novel kind of quasi-DC field marker of the 5-ppm Nuclear Magnetic Resonance (NMR) transducer Metrolab PT2026, applied to the Extra Low ENergy Antiproton (ELENA) ring and the Proton Synchrotron Booster (PSB) at CERN. In some particle accelerators, such as in ELENA, the resulting feed-forward correction guarantees 1 μ T field stability over 120-s long magnetic cycle on a plateau of 50 mT, reducing by three orders of magnitude the field error caused by the integrator drift with respect to the state of the art.
Language
  • English
Open access status
gold
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https://sonar.ch/global/documents/190847
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