DXSS-2020

Magnetostrictive Materials Measuring System

The system is composed of an electromagnet, an electromagnet power supply, a fluxmeter, a gaussmeter, a strain gauge, a Helmholtz coil, an impedance tester, an audio frequency power supply, a data acquisition system, a pressure bag, a computer and a laser printer.

 

System Qualification

1. DC magnetic field classifies seven full-scale ranges which are 0.5 kOe, 1kOe, 2kOe, 4kOe, 8kOe, 16kOe and 32kOe, the highest resolution is up to 0.1Oe.

2. AC magnetic field range is 320 Oe, and its resolution is 0.01 Oe.

3. AC and DC strain classifies nine full-scale ranges which are 32000με, 16000με, 8000με, 4000.0με, 3200.0με, 1600.0με, 800.0με, 400.0με and 320.00με, and it’s the highest resolution is up to 0.01με.

4. DC magnetic flux range is 32.0 mWb, its the highest resolution is up to 0.001mWb.

5. The frequency of the audio frequency power supply can be continuously adjusted from 30Hz to 10kHz, and the maximum output power is  500W. It is used in conjunction with the impedance measurement unit, and the characteristic curve of the sample impedance with frequency can be gotten, and the incremental permeability μ33, piezomagnetic coefficient d33, elastic coefficient S33, and axial electromechanical coupling coefficient K33 etc. parameters can be calculated by the matching software.

6. The inner and external diameters of the Helmholtz coil are Ø50 and Ø115mm, respectively. And its inner and external separations are 14 and 66 mm, respectively. The magnetic field uniformity in the homogeneous space (Ø20 mm×20 mm) is up to ±1%. It is used in conjunction with the audio power supply, the peak magnetic field in the coil center is not less than 80Oe when the output frequency at 30Hz-1KHz; while the peak magnetic field is not less than 50Oe when the output frequency of 1.1kHz-10KHz.

7. The model SB-100 electromagnet is a dual yoke and dual adjustable air gap and its diameter of the polar face is Ø60mm. The magnetic field is more than 2.0kOe when its air gap is 100mm; while the magnetic field is more than 20kOe when its air gap is 10mm.

8. The input voltage of the electromagnet power supply is a three-phase and three-wire system, the line voltage is 380V, the maximum output DC voltage is 500V, the maximum output power is 2.0kW, and its output current stability is better than 5×10-3 when the output current is greater than half the maximum current.

 

I(A)

P(W)

10mm GAP

20mm GAP

30mm GAP

40mm GAP

50mm GAP

60mm GAP

120mm GAP

Working Time

2.5

45

7844

3653

2340

1727

1365

964

580

24h

5

180

14337

7248

4674

3453

2708

2059

1152

24h

7.5

405

17605

10635

6967

5165

4053

3183

1724

8h

10

720

19795

13352

9069

6785

5361

4298

2286

5h

12.5

1125

20945

15145

10759

8236

6592

5397

2846

2h

15

1620

21748

16388

12004

9392

7650

6491

3387

1h

17.5

2205

22293

17278

12974

10287

8491

7317

3901

30min

20

2880

22687

17970

13792

11043

9183

7991

4362

15min

22.5

3645

22971

18513

14481

11693

9781

8671

4774

10min

25

4500

23183

18922

15023

12236

10298

9168

5146

5min

 

 

View other Soft Magnetic Materials Test System

DXSS-2020 multi-parameter measurement system of magnetostrictive materials is the device that measures the material magnetic parameters(such as ldc –Hdc, Bdc-Hdc, lac-Hac, Bac-Hac, Zac-f, Hcb, Hcj, Br and BHmax etc. )change with the applied AC and DC magnetic field.
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