Magnet evaluating device and method
US9625539B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Feb 10, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Jun 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/0253
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnet evaluating device evaluates an evaluation magnet by passing the evaluation magnet, which is formed by connecting a plurality of magnetic sections with insulating material in between, and a master magnet of the same form through an alternating magnetic field generated by an excitation coil, measuring the eddy current occurring in the magnetic section as voltage or current occurring in a detection coil and comparing the measured value for the evaluation magnet and the measured value for the master magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.