FE-2100MQ rare earth permanent magnet material quality testing device Introduction
The use of fluxmeters and Helmholtz coils to test the quality of rare earth materials has become the most popular inspection method among enterprises. Although the magnetic properties of the test materials are not accurate for the permanent magnet material BH measuring device, the intrinsic coercivity of the material cannot be provided. Hcj parameters, but because of its more reliable test magnetic moment data, lower equipment costs, suitable for all material manufacturing and transfer and communication between users, will play a greater role in the field of magnetic measurement.
A one-dimensional Helmholtz coil is configured by a fluxmeter, which is mainly used for measuring the magnetic flux of the permanent magnet device under the condition of the coil, multiplying the coil constant to obtain the magnetic moment of the device, and for the sample of the regular size, the material can be derived. Br, Hcb and BHmax, etc. It has been verified by experiments that the one-dimensional coil test axially magnetized cylindrical, circular and square rare earth permanent magnet samples can accurately test the total magnetic moment M of the material (accurately Mz), using the material BH demagnetization curve close to The straight line can accurately calculate the three important parameters Br, Hcb and BHmax of the magnetic properties of the material, so as to judge the quality of the material, which is very good for the quality transfer of rare earth permanent magnet materials between materials companies and materials users. In the middle, the accuracy and repeatability of the magnetic moment test is far superior to the standard sample transfer data measured by the BH test instrument. The high test efficiency can realize the full inspection of all the magnetized samples, and the defects of the device can be found in time, and the material can be guaranteed. The judgment of the level of magnetic energy product.
Feature
1.Adopting single-chip design, the program is automatically calculated, which is intuitive and convenient;
2.Suitable for all rare earth permanent magnet materials, low equipment cost;
3.It is convenient to measure the magnetic flux Ø and magnetic moment M of the material and calculate the data such as Br, Hcb and BHmax;
4.It can measure rare earth samples of different sizes and is no longer limited by sample size;
5.The non-magnetic heating ceramic furnace can be added, and the M-T curve of the rare earth permanent magnet is obtained by heating test;
6.It can be used for rare earth permanent magnet materials for thermal stability and magnetic flux irreversible inspection;
● The fluxmeter uses low drift technology to make the test more stable and accurate.
Technical Parameters
Power supply: AC 220V/0.5A
Test range: 1mWb, 10 mWb, 100 mWb, 1000 mWb fourth gear
Corresponding input impedance: 1k ohm, 10k ohm, 100k ohm, 1000k ohm
Test accuracy: 0.5%
Drift: 1uWb / minute
Minimum resolution: 0.1uWb (corresponding to 2mwb range)
Volume: 285mm × 300mm × 100mm, weight: 3kg; (width * depth * height)
Operating environment: 0 °C to +50 °C, humidity: 35 to 80%.
Introduction
The use of fluxmeters and Helmholtz coils to test the quality of rare earth materials has become the most popular inspection method among enterprises. Although the magnetic properties of the test materials are not accurate for the permanent magnet material BH measuring device, the intrinsic coercivity of the material cannot be provided. Hcj parameters, but because of its more reliable test magnetic moment data, lower equipment costs, suitable for all material manufacturing and transfer and communication between users, will play a greater role in the field of magnetic measurement.
A one-dimensional Helmholtz coil is configured by a fluxmeter, which is mainly used for measuring the magnetic flux of the permanent magnet device under the condition of the coil, multiplying the coil constant to obtain the magnetic moment of the device, and for the sample of the regular size, the material can be derived. Br, Hcb and BHmax, etc. It has been verified by experiments that the one-dimensional coil test axially magnetized cylindrical, circular and square rare earth permanent magnet samples can accurately test the total magnetic moment M of the material (accurately Mz), using the material BH demagnetization curve close to The straight line can accurately calculate the three important parameters Br, Hcb and BHmax of the magnetic properties of the material, so as to judge the quality of the material, which is very good for the quality transfer of rare earth permanent magnet materials between materials companies and materials users. In the middle, the accuracy and repeatability of the magnetic moment test is far superior to the standard sample transfer data measured by the BH test instrument. The high test efficiency can realize the full inspection of all the magnetized samples, and the defects of the device can be found in time, and the material can be guaranteed. The judgment of the level of magnetic energy product.
