DXV-250 VSM Device with Temperature Control

Features of DXV-250 VSM Device

1.  It can be used for material research and development, quality control and product testing to complete the measurement and analysis of the basic magnetic properties of magnetic materials: such as saturation magnetization, residual magnetization, coercive force, maximum magnetic energy product, Curie temperature, magnetic Conductivity (including initial magnetic permeability), etc.
2.  Can measure magnetic materials such as powders, granules, flakes, and blocks.
3.  It can measure the magnetic properties of magnetic materials in situ with temperature from room temperature to 500 degrees and from room temperature to liquid nitrogen.

Main technical indicators

1.  Measuring magnetic moment range (when the magnetic pole spacing is 40mm): 10-3emu-300emu (sensitivity: 5×10-5emu);
2.  Relative accuracy (when measuring range is 3emu): better than ±1%;
3.  Repeatability (when measuring range is 3emu): better than ±1%;
4.  Stability (when the measuring range is 3emu): the stability is better than ±1% after 4 hours of continuous operation;
5.  Temperature range: room temperature to liquid nitrogen temperature range and room temperature to 500°C;
6.  The magnetic pole spacing is fixed at 35mm and the pole surface diameter is 60mm;
7.  Magnetic field strength: maximum magnetic field strength 2.2T;

Composition of DXV-250 VSM Device:

1.  DXSG-250 electromagnet;
2.  Magnetic moment measurement unit host (including scanning power supply, lock-in amplifier, Tesla meter, high-temperature drive source, and vibration source);
3.  Vibrating head, vibrating rod, and detection coil;
4.  Lenovo brand computers;
5.  HP printer;
6.  High temperature device;
7.  Low temperature device;
8.  Vacuum pump, liquid nitrogen tank (optional);
9.  High and low temperature furnace water circulation system (optional);
10.  Electromagnet circulating water refrigerator (optional).

Main instrument description

1. Electromagnet:

The electromagnet is a double-yoke fixed air gap electromagnet placed at 45°. The magnetic field is in the horizontal direction. The fixed air gap is 40mm. The pole surface diameter is Φ60mm. The maximum value of the magnetic field is better than 2.2T. The electromagnet is a water-cooled cooling structure.

2. Electromagnet DC stabilized power supply:

The power supply is an adjustable high-stability regulated voltage and current automatic conversion DC power supply with a power of 10KW. In the steady current state, the steady output current can be continuously adjusted within the rated range.

The main function

• Output power: output power 8-10kW;
• Protection methods: phase loss protection, overcurrent protection, short circuit automatic protection.

Technical indicators

• The power supply is a steady current output: the current value can be continuously adjusted from 0 to the rated value;
• Display mode: 4 and a half digit LCD digital display of ammeter;
• Display accuracy: ±(1%+2 characters);
• Working time: 8 hours of continuous work (ambient temperature 20±5℃);
• Input voltage: three-phase 380V±10% (three-phase five-wire system);
• Input frequency: 50Hz.

3. Vibration system

Including a vibrating rod, mechanical vibrating head, bracket, sample chamber and detection coil.

4. Magnetic moment measurement unit host

• The magnetic moment range is divided into 300emu, 150emu, 80emu, 40emu, 30emu, 15emu, 8emu, 4emu, 3emu, 1.5emu, 800memu, 400memu, 300memu, 150memu, 80memu, 40memu, 30memu and 15memu (i.e. 0.015emu), a total of 18 levels. , the LCD screen shows that the maximum sensitivity is better than 5×10-5emu; when the magnetic moment range is 3emu, the relative accuracy and repeatability of measuring the magnetic moment are better than ±1%, half an hour of preheating, and stable operation for 4 hours continuously Performance is better than 1%.
• The magnetic field range is up to 3.2T for continuous measurement, the maximum resolution is 0.1mT, and the relative accuracy is better than ±1%.
• The output frequency of the vibration source is 180Hz, the frequency stability is better than 10-5, and the output power is greater than 50W.

5. Lenovo Computer:

6. Printer: HP-1018

7. High temperature control and measuring devices

• Temperature range of sample chamber: room temperature ~ 500℃;
• LCD screen display, resolution 0.1K.

8. Low temperature control and measuring device

• Temperature range of sample chamber: room temperature ~ liquid nitrogen temperature zone
• LCD screen display, resolution 0.1K.

9. Measurement system software

• The system software model is VSM250, which can directly set system parameters and display data intuitively;
• The original data file has a suffix of 13D and is stored directly in the computer to facilitate subsequent processing. You can use Excel and Origin to process the data directly;
• Various measured curves and characteristic parameters can be displayed on the computer screen. The software can arbitrarily select the data, partially enlarge, translate, smooth the curves, and can also output and print on a laser printer; it can also be used by other Processes on general drawing software;
• It can automatically measure the magnetization curve, hysteresis loop, fast MH loop, heating curve, cooling curve, temperature rising and cooling curve, temperature control curve, magnetization curve, hysteresis loop and fast MH loop at the set temperature. and background curve; when the demagnetization factor and sample density are known, the VSM's open-circuit sample magnetic characteristic curve can be automatically converted into the magnetic measurement curve of the material itself (i.e., the closed-circuit sample);
• The software can simultaneously calculate the curve parameters (saturation magnetic moment/saturation magnetization/specific saturation magnetization, residual magnetic moment/residual magnetization, coercive force, intrinsic coercive force, rectangular shape) under the International System of Units and Gaussian Unit System—coefficient, maximum magnetic energy product, loop area, Curie temperature).

You may also like

The Application of VSM250 in "Effect of Fe-Mn addition on microstructure and magnetic properties of NdFeB magnetic powders"

Article: "Effect of synthetic conditions on the structure and magnetic properties of iron oxide nanoparticles in diethylene glycol medium"
Use device: VSM-250 setup

Link: https://www.researchsquare.com/article/rs-4456335/v1