Magnetic Moment Measurement Equipment
Functions and Features
◆ Magnetic hysteresis loop (M-H) can be tested to obtain coercive force, remanent magnetization and saturation magnetization, moment and other parameters;
◆ M-T curve can be tested, and the superconducting transition can be obtained with the low-temperature option, Curie temperature point can be obtained with the high-temperature option;
◆ The whole series is equipped with a 360 ° continuous electric rotating vibration head as standard, and the sample has been rotated continuously;
◆ It is located at the center of the collecting coil and magnetic field; compared with the superconducting magnet, VSM is more convenient for anisotropic research;
◆ The specially designed adjustment method of the electromagnet pole gap ensures that the sample no longer needs to adjust the center in the left and right directions; the exact mechanical design ensures that the sample is in the front and back direction center of the collection coil every time; the new concept of electric lifting system can automatically adjust the center position of the sample in the up and down directions; the design of the above three aspects can greatly improve the accuracy of the test The complex, time-consuming and rough sample centering process of traditional VSM system is eliminated due to its high degree and repeatability;
◆ The test speed is revolutionary accelerated. It can continuously collect the magnetic moment, magnetic field and temperature value at 10ms to ensure that the user can capture any details that change rapidly during the test process. The change rate of the electromagnetic field is as high as 5000 Oe/ s, which is impossible for the superconducting magnet. Under this high-speed change rate of magnetic field and high-speed data acquisition rate, 14s It can get a hysteresis loop and support the test of the first order inversion curve (FORC);
◆ By introducing a high-precision laser displacement sensor, the amplitude variation of 1 μm can be distinguished, and a closed-loop control can be formed with a specially customized sample vibration drive system, which can achieve the stability of 8 mm amplitude for a long time(24h) of 4/10000(4 μm);
◆ The replacement and alignment device of the integrated design of the option no longer has the risk of breaking the sample bar of the traditional VSM, and ensures that the sample vibrates vertically on the ground without "hitting the wall"; the high and low-temperature option also supports the vector magnetic moment test;
◆ The sample pole electric signal lead of patented technology is convenient for introducing an electric field in magnetic measurement;
◆ The integration of the magnetic moment signal collection coil and the Gauss meter probe makes the space less, the installation more convenient and the cable more reliable;
◆ It has a patented design, simple operation of single-hand sample replacement, and a human-computer interface for one key software test;
◆ Material to be measured:
Diamagnetic, Paramagnetic, Ferromagnetic, Ferrimagnetic, Antiferromagnetic materials and Anisotropic materials
Particulate and continuous magnetic recording materials and GMR, CMR, exchange biased and spin valve materials,
Magnetic-optical materials, Bulk materials, powders, thin films, single crystals, and liquids are readily accommodated;
◆ System software with a friendly interface and convenient operation.
software interface
Technical Specifications:
Magnetic Moment Measurement |
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Noise |
0.1s/pt(RMS) |
0.1s/pt(P-P) |
1s/pt(RMS) |
1s/pt(P-P) |
10s/pt(RMS) |
10s/pt(P-P) |
Room Temp. @3.5mm |
150μemu |
800μemu |
80μemu |
380μemu |
35μemu |
80μemu |
High or low temperature @8mm |
20μemu |
90μemu |
15μemu |
35μemu |
10μemu |
9μemu |
Note: RMS is the root-mean-square value of data within 10 minutes, and p-p is the peak-peak value of data within 10 minutes | ||||||
Measuring Range |
35*10-9 to 103 emu |
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Stability |
±0.05% of full scale/day (fixed coil spacing, Data obtained 24 hours after thermal equilibrium at a relative maximum range of 2 hours at constant temperature and magnetic field.) |
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Repeatability |
± 0.5% (data obtained by loading and removing samples ten times in the same coil spacing and range) |
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Accuracy |
± 1%, (compared with NIST 772a standard sample) |
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Sample Quality |
0 to 10g (the larger mass sample will cause amplitude reduction, resulting in a reduction in signal-to-noise ratio) |
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Other parameters | The system adopts an interval of 0.01-10s (continuous mode 10ms), the lock-in amplifier time constant is fixed at 100ms, the low-pass steep drop is 24dB/oct, the vibration amplitude is 2-8mm, and the vibration frequency is 55-85Hz. |
Magnetic Field |
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Sample Temp. |
Air Gap |
Sample Area |
DXV-9005 |
DXV-9007 |
|
Room Temp. |
7.5mm |
3.5mm |
2.7T |
3.0T |
|
12mm |
8mm |
2.4T |
2.6T |
||
H and L Temperature |
25mm |
8mm |
1.95T |
2.2T |
|
High and low temperature integration |
28mm |
8mm |
1.9T |
2.1T |
|
Magnetic Field Characteristics |
Sample lifting &rotating |
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Accuracy |
1% |
Lifting accuracy |
0.1mm |
||
Resolution |
1 mOe |
Lifting Range |
0 to 300mm |
||
Repeatability |
100 mOe |
Accuracy |
0.01° |
||
Rate of change | 5000 Oe/s | Rotating Range | continuous |
Configurations of Goods of DXV-9005 Magnetic Moment Measurement Equipment
No. |
Part Name |
Model No. |
Qty |
Application |
1 |
Variable Gap Electromagnet |
DXSB-130 |
1 |
Generating Field |
2 |
Electromagnet Bipolar Power Supply |
DXEP-7050 |
1 |
For Electromagnet |
3 |
Locking Amplifier |
|
1 |
Data. Acquisition |
4 |
Vibrating Head |
|
1 |
Vibrating |
5 |
Sample Rod |
|
1 |
Extend the samples |
6 |
Sample Holder |
|
10 |
Contain samples |
7 |
Sample Fixture |
|
10 |
For film samples |
8 |
Vibrating Head Support |
|
1 |
Support the vibrating head |
9 |
Cabinet |
|
1 |
For meters |
10 |
Calibration Sample |
|
1 |
Calibrating moment |
11 |
Computer |
|
1 |
For software |
12 |
Chiller |
RG0309 |
1 |
Cooling electromagnet and power supply |
13 |
High Temperature System |
RT-873K |
1 |
|
14 |
Low Temperature System |
80K-350K |
1 |
IN DEVELOPING |
Configurations of Goods of DXV-9007 Magnetic Moment Measurement Equipment
No. |
Part Name |
Model No. |
Qty |
Application |
1 |
Variable Gap Electromagnet |
DXSB-178 |
1 |
Generating Field |
2 |
Electromagnet Bipolar Power Supply |
DXEP-9060 |
1 |
For Electromagnet |
3 |
Locking Amplifier |
|
1 |
Data. Acquisition |
4 |
Vibrating Head |
|
1 |
Vibrating |
5 |
Sample Rod |
|
1 |
Extend the samples |
6 |
Sample Holder |
|
10 |
Contain samples |
7 |
Sample Fixture |
|
10 |
For film samples |
8 |
Vibrating Head Support |
|
1 |
Support the vibrating head |
9 |
Cabinet |
|
1 |
For meters |
10 |
Calibration Sample |
|
1 |
Calibrating moment |
11 |
Computer |
|
1 |
For software |
12 |
Chiller |
RG0309 |
1 |
Cooling electromagnet and power supply |
13 |
High Temperature System |
RT-873K |
1 |
|
14 |
Low Temperature System |
80K-350K |
1 |
IN DEVELOPING |
Basic options
Magnetic field temperature (Fe-Co pole option) |
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Sample Temp. |
Air Gap |
Sample Area |
DXV-9005 |
DXV-9007 |
|
Room Temp. |
7.5mm |
3.5mm |
2.87T |
3.20T |
|
12mm |
8mm |
2.59T |
2.76T |
||
High and low temperature integration |
25mm |
8mm |
2.23T |
2.53T |
|
High integration |
28mm |
8mm |
1.98T |
2.23T |
Temperature options | ||
Low temperature | High temperature | |
80K to 370K | 350K to 1050K | |
Temperature resolution | 0.001K | ±0.1K |
stability | ±0.1K | ±1K |
Temperature change time and rate | 15min min 6k/min max | 35min min 20K/min max |
sample environment | flowing nitrogen | static argon |
insulation layer | vacuum | Vacuum, and multi-layer insulation materials |
Outside diameter and sample space | φ19mm, φ8mm | φ19mm, φ8mm |
Sample Holder
Room temperature and low temperature sample rod (Carbon fiber) | ||
No. |
Sample |
Max. Sample Size (mm) |
91001 |
block |
Φ4*10 |
91002 |
powder |
Φ4*10 |
91003 |
Film, out of plane |
10*6.4 |
91003m |
Film, out of plane |
10*2.5 |
91004 |
Film, in plane |
6.4*10 |
91004m |
Film, in plane |
2.5*10 |
91005 |
liquid |
Φ2.5*10 |
High temperature sample rod (quartz) | ||
No. |
Sample |
Max. Sample Size (mm) |
91011 |
block |
Φ4*10 |
91012 |
powder |
Φ4*10 |
91013 |
Film, out of plane |
10*6.4 |
91014 |
Film, in plane |
6.4*10 |
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