| In situ calibration of rotating sensor coils for magnet testing. | |
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MedLine Citation:
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PMID: 22299944 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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An in situ procedure for calibrating equivalent magnetic area and rotation radius of rotating coils is proposed for testing accelerator magnets shorter than the measuring coil. The procedure exploits measurements of magnetic field and mechanical displacement inside a reference quadrupole magnet. In a quadrupole field, an offset between the magnet and coil rotation axes gives rise to a dipole component in the field series expansion. The measurements of the focusing strength, the displacement, and the resulting dipole term allow the equivalent area and radius of the coil to be determined analytically. The procedure improves the accuracy of coils with large geometrical irregularities in the winding. This is essential for short magnets where the coil dimensions constrain the measurement accuracy. Experimental results on different coils measuring small-aperture permanent magnets are shown. |
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Authors:
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P Arpaia; M Buzio; G Golluccio; L Walckiers |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Review of scientific instruments Volume: 83 ISSN: 1089-7623 ISO Abbreviation: Rev Sci Instrum Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-02-03 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0405571 Medline TA: Rev Sci Instrum Country: United States |
Other Details:
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Languages: eng Pagination: 013306 Citation Subset: IM |
Affiliation:
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Department of Engineering, University of Sannio, Corso Garibaldi 107, 82100 Benevento, ItalyCERN, European Organization for Nuclear Research, 1211 Geneva 23, Switzerland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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