Research on calibration method of permanent magnet magnetic declination tester based on three-dimensional helmholtz coil
In order to effectively trace the value of the magnetic declination tester for permanent magnet based on three-dimensional Helmholtz coil,this paper studies the working principle,measurement char-acteristics and measurement standards of the magnetic declination tester,and proposes calibration meth-ods for technical parameters such as Helmholtz coil constant,three-dimensional probe coil orthogonality,datum level and magnetic declination indication error.And through the test verification to meet the mag-netic declination tester quantity traceability requirements.
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