As magnet assemblies continue to increase in complexity, QC operations also increase in difficulty if field values need to be assessed at multiple locations around the assembly. Off-the-shelf field mappers are readily available but may cost tens of thousands of dollars and might not be optimized for the user’s exact situation. In many cases, a DIY solution that pairs a high-speed teslameter and a Hall probe with a motorized platform is the best fit for this application.
Lake Shore Cryotronics’ F71 multi-axis and F41 single-axis teslameters are optimized for such a setup. No matter how obscure the shape and size of the magnet assembly, the ability to take reliable repeatable field measurements with the teslameters is only limited by the user’s creativity in motorized apparatus design. With a range of Hall probe configurations, mounting options, and even affordable customizations, there is a probe for the user’s unique application.
And with Lake Shore’s recent release of high-speed data logging (for up to 100 buffered readings per second), users can quickly characterize even complex magnets, allowing high-volume throughput with just a single measurement station. Access to this feature is made simple with the release of several communication methods, including SCPI, LabVIEW™, and an all-new native Python driver, highlighted in the company’s recent app note, “Fast Magnetic Field Mapping with F71/F41 Teslameters”
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