Method for measuring flux of magnetic element and device thereof

A magnetic component and magnetic flux technology, applied in the field of magnetic flux testing, can solve problems such as poor numerical repeatability and accuracy, low test efficiency, and high labor intensity, and achieve high repeatability and accuracy, high test efficiency, and labor intensity. low effect

Inactive Publication Date: 2014-09-03
NINGBO CANMANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above method has the following problems: 1. The magnetic flux value will be affected by the distance of the magnetic element away from the Helmholtz coil. The tester manually moves the magnetic element, which cannot ensure that the magnetic elements to be tested are all in the same test position, which leads to the test The obtained magnetic flux data of each magnetic element has a large difference, and the repeatability and accuracy of the value are poor;

Method used

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  • Method for measuring flux of magnetic element and device thereof
  • Method for measuring flux of magnetic element and device thereof
  • Method for measuring flux of magnetic element and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example one: such as figure 1 with figure 2 As shown, a method for measuring the magnetic flux of a magnetic element includes the following steps:

[0037] ① Connect the Helmholtz coil 1 and the flux meter. The Helmholtz coil 1 includes a support base 11, a first coil 12 and a second coil 13 coaxially arranged on the left and right ends of the support base 11;

[0038] ②Put the magnetic element 2 under test into the Helmholtz coil 1. The magnetizing direction of the magnetic element 2 under test is along the axis of the Helmholtz coil 1, and the magnetic element 1 under test is located in the first coil 12 and the second coil. In the middle of the coil 13, the end surface of the magnetic element 2 under test facing the first coil 12 is the first end surface 21, and the end surface of the magnetic element under test 2 facing the second coil 13 is the second end surface 22;

[0039] ③ Clear the fluxmeter;

[0040] ④Using the turning mechanism 3 to turn the magnetic element 2 und...

Example Embodiment

[0045] Embodiment two: such as image 3 As shown, a method for measuring the magnetic flux of a magnetic element includes the following steps:

[0046] ① Connect the Helmholtz coil 1 and the flux meter. The Helmholtz coil 1 includes a support base 11, a first coil 12 and a second coil 13 coaxially arranged on the left and right ends of the support base 11;

[0047] ②Put the magnetic element 2 under test into the Helmholtz coil 1. The magnetizing direction of the magnetic element 2 under test is along the axis of the Helmholtz coil 1, and the magnetic element 1 under test is located in the first coil 12 and the second coil. In the middle of the coil 13, the end face of the magnetic element 2 under test facing the first coil 12 is the first end face 21, and the end face of the magnetic element under test 2 facing the second coil 13 is the second end face 22;

[0048] ③ Clear the fluxmeter;

[0049] ④Use the turning mechanism 3 to turn the magnetic element 2 under test 180 degrees and k...

Example Embodiment

[0059] Embodiment 3: On the basis of Embodiment 1 and Embodiment 2, this embodiment adds a mechanical arm for loading the magnetic element 2 into the positioning table 4 and removing the magnetic element 2 from the positioning table 4, thus Improve the automation of the device and improve the test efficiency.

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Abstract

The invention discloses a method for measuring flux of a magnetic element and a device thereof. The magnetic element to be detected is placed into Helmholtz coils. A magnetizing direction of the magnetic element to be measured is in the axial direction of the Helmholtz coils, and furthermore the magnetic element to be measured is arranged at right central part between a first coil and a second coil. After a flux meter is reset, the magnetic element is overturned for 180 DEG through an overturning mechanism and is kept still. An output value of the flux meter is read as a flux value of the magnetic element to be measured, thereby obtaining the flux value of the magnetic element to be measured. The method of the invention is advantageous in that: in the measurement process, defining of the magnetic field area of the Helmholtz coils is not required; and the flux value can be measured through overturning the magnetic element for 180 DEG by the overturning mechanism. Simple operation, low labor intensity and relatively high measurement efficiency are realized. The overturning mechanism can ensure same measurement condition and position of each magnetic element to be tested. Relatively high repeatability and high accuracy of the measured data are realized. Furthermore the method is not limited by the volume of the magnetic element.

Description

technical field [0001] The invention relates to a magnetic flux testing technology, in particular to a method and a device for measuring the magnetic flux of a magnetic element. Background technique [0002] With the development of science and technology, the application fields of magnetic components are expanding day by day. At the same time, the quality requirements for magnetic components are constantly increasing. In order to ensure the quality of the magnetic components, after the production of the magnetic components is completed, it is necessary to check whether each important performance parameter of the magnetic components is within the qualified range. As one of the important performance indicators of magnetic components, magnetic flux has become one of the required inspection items for magnetic components. [0003] At present, Helmholtz coils and fluxmeters are generally used to measure the magnetic flux of magnetic components. The main process is: firstly, the ...

Claims

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Application Information

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IPC IPC(8): G01R33/12
Inventor 黄可可李正瑜王西平
Owner NINGBO CANMANG TECH
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