Abstract
In order to enhance the quality of measurement results of various scientific instruments, such as magnetic property measurement systems, magnetic resonance imaging (MRI), nuclear magnetic resonance (NMR) and others, a spatially uniform magnetic field is required at the magnetic center. However, the measured field uniformity is usually worse than that in the design result due to the manufacturing errors of a superconducting magnet system. Therefore, spatial field uniformity compensation is needed to reduce the effects of manufacturing errors on field uniformity. Conventional field compensation methods require recursive routines of field mapping and compensation coil current adjustments, which lead to a less effective time-consuming process. In this study, a recently developed active field compensation algorithm employing pattern search, an optimization theory, will be introduced. A MATLAB code for active compensation coil current calculations with pattern search was developed, and six compensation coil designs and field distribution calculations with and without the proposed method were also carried out to compare the results. The test results demonstrate the feasibility of the proposed field compensation method for superconducting magnets.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
