Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 83, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4731262
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Funding
- UC-MEXUS
- PAPIIT-DGAPA [IN101312]
- Marcos Moshinsky Foundation
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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 (approximate to 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. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4731262]
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