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Title: Calibration technique for rotating PCB coil magnetic field sensors

Abstract

A high-accuracy calibration of inductive coil sensors based on Printed Circuit Board (PCB), commonly used in rotating coil field measurements of particle accelerator magnets, is presented. The amplitude and phase of signals with and without main field suppression are compared in order to simultaneously determine both the PCB rotation radius and the transverse offset of its plane from rotation center. The accuracy of planar wire placement on the PCB boards is exploited to create loops highly precise in area which rotate at different radii. Such an area reproducibility and circuit geometry allow the suppression of the fundamental field, enabling the calibration, as well as improving signal resolution and mitigating vibration effects. Lastly, the calibration can be performed dynamically, in-situ during measurements. Calibration accuracy is validated experimentally by referencing the PCB positions with a Coordinate Measuring Machine (CMM).

Authors:
 [1];  [2]; ORCiD logo [2]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Univ. of Sannio, Benevento (Italy)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1497089
Report Number(s):
FERMILAB-PUB-18-696-TD
Journal ID: ISSN 0924-4247; 1722209
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Sensors and Actuators. A, Physical
Additional Journal Information:
Journal Volume: 288; Journal Issue: C; Journal ID: ISSN 0924-4247
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Rotating coil; Magnetic measurements; Field harmonics; Sensor calibration

Citation Formats

DiMarco, Joseph, Severino, Giordana, and Arpaia, Pasquale. Calibration technique for rotating PCB coil magnetic field sensors. United States: N. p., 2019. Web. doi:10.1016/j.sna.2019.02.014.
DiMarco, Joseph, Severino, Giordana, & Arpaia, Pasquale. Calibration technique for rotating PCB coil magnetic field sensors. United States. doi:10.1016/j.sna.2019.02.014.
DiMarco, Joseph, Severino, Giordana, and Arpaia, Pasquale. Wed . "Calibration technique for rotating PCB coil magnetic field sensors". United States. doi:10.1016/j.sna.2019.02.014.
@article{osti_1497089,
title = {Calibration technique for rotating PCB coil magnetic field sensors},
author = {DiMarco, Joseph and Severino, Giordana and Arpaia, Pasquale},
abstractNote = {A high-accuracy calibration of inductive coil sensors based on Printed Circuit Board (PCB), commonly used in rotating coil field measurements of particle accelerator magnets, is presented. The amplitude and phase of signals with and without main field suppression are compared in order to simultaneously determine both the PCB rotation radius and the transverse offset of its plane from rotation center. The accuracy of planar wire placement on the PCB boards is exploited to create loops highly precise in area which rotate at different radii. Such an area reproducibility and circuit geometry allow the suppression of the fundamental field, enabling the calibration, as well as improving signal resolution and mitigating vibration effects. Lastly, the calibration can be performed dynamically, in-situ during measurements. Calibration accuracy is validated experimentally by referencing the PCB positions with a Coordinate Measuring Machine (CMM).},
doi = {10.1016/j.sna.2019.02.014},
journal = {Sensors and Actuators. A, Physical},
number = C,
volume = 288,
place = {United States},
year = {2019},
month = {2}
}

Journal Article:
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This content will become publicly available on February 13, 2020
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