An Epstein square circle magnetic performance detection device and method

An Epstein square and detection device technology, which is applied in the field of Epstein square magnetic performance detection devices, can solve the problems of inability to evaluate the uniformity of samples and the inability to detect the anisotropy of non-oriented silicon steel at one time, and achieve the goal of reducing detection errors Effect

Active Publication Date: 2021-05-25
武汉钢铁有限公司
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Problems solved by technology

[0004] The Epstein square coil is a square device composed of four coils. During the test, the sample is processed into a 30mm*300 strip sample and placed in the winding with double lap joints. It is impossible to test the non-oriented silicon steel half sample in one time. Anisotropy, it is necessary to repeat the processing and detection calculation according to the direction, and it is impossible to evaluate the uniformity of the sample

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  • An Epstein square circle magnetic performance detection device and method
  • An Epstein square circle magnetic performance detection device and method
  • An Epstein square circle magnetic performance detection device and method

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Embodiment Construction

[0028] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 1 and figure 2 As shown, an Epstein square coil magnetic performance detection device includes an insulating base plate 1 and an Epstein square coil. The Epstein square coil is a square frame structure formed by four winding skeletons 2 on the insulating base plate. The winding skeleton is The center is provided with a rectangular block structure of accommodating cavity 3, which is a rectangular through hole arranged in the axial direction, and a rectangular groove 4 is symmetrically arranged in the center of the top and bottom surfaces of the accommodating cavity, and a rectangular groove is embedded in the rectangular groove. H coil 5, two inner and outer coils are wound on the winding skeleton, and the outer coil is the primary magnetized coil N 1 , the inner coil is the se...

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Abstract

The invention proposes a device and method for detecting the magnetic properties of Epstein square circles, including an insulating base plate and an Epstein square circle. The Epstein square circle is a square frame structure formed by four winding frames on the insulating base plate. Embedded H coil, externally wound with inner and outer coils, primary magnetized coil N 1 and the secondary induction coil N 2 , can use Epstein square circle to carry out electric current method and / or H coil method to carry out magnetic performance detection, the present invention improves detection precision, and detection method is various.

Description

technical field [0001] The invention belongs to the technical field of silicon steel product detection, and in particular relates to an Epstein square ring magnetic property detection device and method. Background technique [0002] Nowadays, silicon steel sheets have been widely used in power grids, transformers, motors and compressors. Accurate detection and evaluation of the magnetic properties of silicon steel sheets has always been the direction of continuous efforts in the silicon steel sheet manufacturing and application industries. The Epstein Square Magnetic Method is a classic detection method in the field of electrical steel, and it is also a detection method generally recognized and adopted by the world and the industry. However, with the advancement of technology and the refinement of detection requirements, the limitations of Epstein's square method detection have gradually been exposed in recent years. [0003] At present, according to IEC 60404 and GB / T 3655...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/12
CPCG01R33/1253
Inventor 张俊鹏向前徐利军黄双张婷婷叶国明蒋祝爽
Owner 武汉钢铁有限公司
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