TITLE

Note: Design of a novel rotating magnetic field device

AUTHOR(S)
Godínez, F. A.; Chávez, O.; Zenit, R.
PUB. DATE
June 2012
SOURCE
Review of Scientific Instruments;Jun2012, Vol. 83 Issue 6, p066109
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A novel device to produce a rotating magnetic field was designed, constructed, and tested. The system consists of a Helmholtz coil pair which is mechanically coupled to a dc electric motor whose angular velocity is controlled. The coil pair generates a uniform magnetic field; the whole system is rotated maintaining the coils energized using brushes. The magnetic field strength is uniform (≈5.8 mT) for a workspace of about 100 mm along the rotation axis. The system remains free of undesirable high amplitude mechanical vibrations for rotation frequencies below 10 Hz. We verified the performance of the apparatus by conducting experiments with magnetic swimmers.
ACCESSION #
77442568

 

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