Silicon steel magnetic property detection used ferrometer

A technology of magnetic permeability meter and measuring coil, which is applied in the field of magnetic permeability meter for silicon steel magnetic performance measurement. It can solve the problems of difficulty in taking out the sample to be tested, affecting the measurement efficiency, large deformation of the sample, etc., and achieves the utilization and international import and export. The effect of promoting trade, increasing the degree of automation, and reducing measurement errors

Inactive Publication Date: 2007-03-14
北京赛迪机电新技术开发公司
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Problems solved by technology

This manual measurement process is not only troublesome and affects the measurement efficiency, but also has many defects. For example, in order to reduce the measurement error, the magnetic characteristic measurement requires the upper and lower U-shaped yokes to be closed and pressed against the sample to be tested. Tight to form a closed magnetic circuit, and the pressure on the sample to be tested is required to be between 100 and 200 Newtons
If the ...

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  • Silicon steel magnetic property detection used ferrometer
  • Silicon steel magnetic property detection used ferrometer
  • Silicon steel magnetic property detection used ferrometer

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Embodiment Construction

[0024] The magnetic permeability meter in the present invention controls the movement of the lower U-shaped magnetic yoke by driving the motor, and simultaneously collects pressure data between the upper and lower magnetic yokes, thereby ensuring a proper pressure between the magnetic yokes. The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Fig. 1 is the structure schematic diagram of magnetic permeability meter of the present invention, as shown in Fig. 1, comprise in this magnetic permeability meter: upper U-shaped magnetic yoke 10, lower U-shaped magnetic yoke 11, coil 12, skeleton 14, guide bar 28, Backing plate 20, pressure sensor 21, connector 22, driving motor 24, excitation power supply 25, and computer 26. Wherein, the coil 12 includes an exciting coil 120 and a measuring coil 121 , and the computer 26 includes an analog-to-digital, digital-to-analog (A / D, D / A) conversion card 260 ....

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Abstract

The disclosed permeameter for silicon steel magnetic performance comprises: an upper/lower yoke with one fixed and another connected with a drive motor, some coils included excitation coil and measuring coil, an excitation power, and a pressure sensor. Compared with Epstein square coil, this invention can save sample material greatly, reduces measurement error, and can bring much economic benefit.

Description

technical field [0001] The invention relates to the field of magnetic measurement, in particular to a permeameter for measuring the magnetic properties of silicon steel. Background technique [0002] The magnetic characteristic parameters of silicon steel sheet mainly include parameters such as magnetic flux density, magnetic permeability, coercive force, iron loss, etc., which are usually measured by Epstein square ring or magnetic permeability meter as the excitation mechanism. Due to the complicated sample production and high measurement cost of the Epstein square circle, it has been gradually replaced by the magnetic permeability meter. [0003] The permeameter in the prior art includes: an upper U-shaped yoke, a lower U-shaped yoke, a coil and a skeleton, wherein the coil includes an excitation coil and a measuring coil, and the coil is wound on the skeleton. When measuring the magnetic characteristics, the sample to be tested is placed between the upper and lower U-sh...

Claims

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Application Information

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IPC IPC(8): G01R33/12G01R33/00
Inventor 方岱宁饶国光
Owner 北京赛迪机电新技术开发公司
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