2022 The best of magnetic property measurement system.SourceRare earth magnet-https://www.rare-earthmagnet.com/best-of-magnetic-property-measurement-system/
SourceRare earth magnet-https://www.rare-earthmagnet.com/best-of-magnetic-property-measurement-system/
For the purpose of measuring a local magnetic property distribution in a steel sheet stably even when a variation in an amount of liftoff occurs, a magnetic property measurement method comprises: a step of acquiring beforehand, as normal part liftoff data, a relationship (Ls(l)) between an output of a magneto-sensitive element at a normal part of a subject to be measured beforehand and an amount of liftoff of the magneto-sensitive element; a step of acquiring beforehand, as defective part liftoff data, a relationship (Lp(l)) between an output of the magneto-sensitive element at a defective part of the subject to be measured beforehand and an amount of liftoff of the magneto-sensitive element; a measurement step of measuring an output (x) of the magneto-sensitive element at a subject and an amount of liftoff (l) of the magneto-sensitive element when the output (x) is obtained; and a correction step of performing an operation for correcting the output (x) of the magneto-sensitive element at the subject measured in the measurement step, by using the normal part liftoff data, the defective part liftoff data, and the amount of liftoff measured in the measurement step.SourceRare earth magnet-https://www.rare-earthmagnet.com/best-of-magnetic-property-measurement-system/
SourceRare earth magnet-https://www.rare-earthmagnet.com/best-of-magnetic-property-measurement-system/
A closed-loop soft magnetic material DC magnetic property measurement method, including steps: A, demagnetization of the sample with decay amplitude; B, impact magnetization of the sample with forward and reverse increase according to the set Hset, taking the (B, H) value and connecting the points to obtain the basic magnetization curve after the microcomputer judges the stability; C, forward and reverse impact to the maximum value of magnetic field strength Hs, magnetic flux averaging to obtain the Bs value; D, magnetic exercise in the condition of Hs D, magnetic exercise under Hs condition for one cycle, and then shock to +Hs→Hset, through the microcomputer intelligent judgment under stable conditions (B, H) value, complete the measurement from Hs to -Hs points and connect to obtain the hysteresis line down branch; E, the hysteresis line down branch to do symmetric inverse operation to obtain the hysteresis line up branch, to obtain the complete DC hysteresis line. The invention is completely based on the definition of soft magnetic DC magnetic energy by the impact method, and the measurement of magnetization curve and hysteresis line is done automatically without human intervention, with accurate test data and high efficiency.SourceRare earth magnet-https://www.rare-earthmagnet.com/best-of-magnetic-property-measurement-system/
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