DX-2012AM magnetization angle measurement system

DX-2012AM magnetization angle measurement system

        The hardware composition is high speed 32 digitals M4 singlechip system, 3 sets built-in fluxmeter, 7 inches 800*480 resolution LCD. The front panel is shown as following:

The back panel is shown as following:

        A single Helmholtz coil can be used to measure the magnetic moment M produced by the permanent magnet in the magnetization direction. The magnetic moment M can be obtained through the relational expression M=KH×Φ, in which KH is the Helmholtz coil constant, while the Φ is the magnetic flux of the magnet induction to the coil. As for the quality inspection for the permanent material samples after being magnetized, Helmholtz coil is adopted and it is getting quite popular and universal. It is extremely important for the designed one-dimensional and three-dimensional Helmholtz coil to participate in the mutual parameter transmission with its international peers.

        Through the efforts of the company's collective wisdom, DX-2012AM magnetic declination measuring device was completed and can be put on the market as a new product. Compared with the original prototype, this enquipment imporves is the design of the machine body, add a pneumatic push sample structure for the separation of large rare earth permanent magnet sample, and coil constants K of XY axis coils are designed to be under 0.015cm. All of these meet the needs of customers at home and abroad. As the equipment does not involve the use of graphic record, we change the computer configuration to laptops, mainly used as the record of the test samples, and all the recorded parameters can be directly printed out.

Configuration

Model	Item Name	Qty	Unit
DX-2012AM	magnetic declination test host	1	set
DXHC150	3-axial helmholtz coil	1	set
DX-2012	magnetic declination testing software	1	set
M4200	Lenovo PC	1	set
HP1007	HP printer	1	set
Nonstandard	Special working platform	1	set

Technical Parameters

 

1. DX-2012AM magnetic declination test host

  Three-channel fluxmeter

1. Fluxmeter range: 1mWb/10mWb/100mWb/1000mWb, four gears, accuracy: 0.5%;

2. Fuxmeter resolution: 0.01%, 0.1uWb min.;

3. Input impedance corresponding range: 1kΩ/10kΩ/100kΩ/1MΩ;

4. Drift: 1uWb/min (corresponding to 10mWb test range after adjusting stably) .

  Host function

1. Diretly display the flux of three-channel fluxmeter;

2. Directly display magnetic declination θz of the tested sample;

3. Comprison between θz and the setting value, easy to judge qualifed or unqualified and classify high precision product;

4. Stand-alone test or connect to PC with RS232 interface and automatically record test data ;

5. Repeatability and reproducibility of magnetic moment M and magnetic declination θz is less than 10%.

2. DXHC150 3-aixal helmholtz coils (round-shape)

1. XY coil constant designed as: 0.015 Wb*cm/V*s, calibration accuracy: better than 0.5%;

2. Z coil constant designed as: 0.05 Wb*cm/V*s, calibration accuracy: better than 0.5%;

3. Coil orthogonal angle: better than ±0.2°;

4. Main axial coil (Z coil places up and down, easy to improve the test accuracy of magnetic declination);

5. Test sample range:
   a. 30mm3～150mm3 (homogeneous area: 0.3%);
   b. 30mm3～30mm3 (homogeneous area: 1.0%).

 

  3. DX-2012AM magnetic declination testing software

1. Automatically record the serial no. of the tested sample;

2. Automatically record θz, total magnetic moment M and flux Øx、Øy、Øz.

3. Coil resistance is Ohm, directly input, test software auto-correct fluxmeter amplification coefficient to ensure the test accuracy.

  4. Testing capability (the second table is Mastesy’s test result, 1Am2=1.2566uWb*m）