Online detecting method of silicon steel magnetic property, coil and system therefor

Abstract

The disclosed on-line detection coil for silicon steel magnetic performance comprises: from inside to outside, a frame with cavity matched size of product line, a measurement coil, the isolation layer, an excitation coil. This invention needs not special sample to reduce detection cost and improve real-time detection effect.

Description

technical field [0001] The invention relates to the field of detection of the magnetic properties of silicon steel, in particular to an online detection method, coil and system of the magnetic properties of silicon steel. Background technique [0002] The magnetic characteristic data of silicon steel sheet is an important basis for designing equipment such as motors and electrical appliances, and determines the performance of the equipment to a large extent. The magnetic properties of silicon steel sheet mainly include parameters such as magnetic induction intensity and iron loss, which are usually measured by Epstein square ring or magnetic permeability meter as the excitation mechanism. [0003] In such a detection method, it is necessary to cut the silicon steel rolled on the production line into samples, and then put it into the corresponding online detection device for detection, so there are several defects. One is that it needs to be sampled on the production line, us...

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Problems solved by technology

[0003] In such a detection method, it is necessary to cut the silicon steel rolled on the production line into samples, and then put it into the corresponding online detection device for detection, so there are several defects. One is that it needs to be sampled on the production line, usually Shear sampling is carried out at the head and tail of the silicon steel, which means that the measurement results are not for the detection of the entire package or roll of silicon steel, and cannot fully represent the performance of the entire package or roll of products; When the sample is sheared, especially when the Epstein square circle is used for detection, the number of times of shearing the sample is large, and the sample will affect the accuracy of the measurement due to the stress generated during the shearing process; the third is the test after sampling. After the sample is tested, it will become waste, wasting silicon steel, and resulting in high testing costs

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