VSM Device

The DXV-250 VSM device is a powerful measuring device with a high temperature control and cooling system that can fully measure the basic magnetic properties of magnetic materials. This device can accurately draw magnetization curve, hysteresis loop, demagnetization curve and other magnetic curves. In addition to conventional magnetic curve measurements, the DXV-250 VSM device is also capable of measuring heating and cooling curves. By precisely controlling the heating and cooling system of the equipment, the magnetic properties of the magnetic materials can be observed at different temperatures, and the magnetic properties of the materials can be further revealed. In addition, DXV-250 VSM equipment also has the measurement function of constant temperature magnetization curve and constant temperature hysteresis loop.

It can be used for material research and development, quality control and product testing. The device can accurately measure and analyze the basic magnetic properties of magnetic materials, including but not limited to key parameters such as saturation magnetization, remanent magnetization, coercivity, maximum magnetic energy product and Curie temperature. In addition, it can also determine the electrical conductivity, including the initial permeability and other important indicators.

DXV-250 VSM equipment has a wide measurement range, can be applied to a variety of forms of magnetic materials, including powder, particle, flake and block, etc., for different types of material research provides convenience.

It can measure the magnetic properties of magnetic materials in situ, supporting a wide temperature range from room temperature to 500 degrees, and even covering the temperature of liquid nitrogen, providing a strong technical support for researchers to explore the magnetic properties of materials under different temperature conditions. This feature makes the device have a unique advantage in the study of high temperature properties of magnetic materials

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;

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).

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.

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

a. Output power: output power 8-10kW;

b. Protection methods: phase loss protection, overcurrent protection, short circuit automatic protection.

Technical indicators

a. The power supply is a steady current output: the current value can be continuously adjusted from 0 to the rated value;

b. Display mode: 4 and a half digit LCD digital display of ammeter;

c. Display accuracy: ±(1%+2 characters);

d. Working time: 8 hours of continuous work (ambient temperature 20±5℃);

e. Input voltage: three-phase 380V±10% (three-phase five-wire system);

f. Input frequency: 50Hz.

Vibration system

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

Magnetic moment measurement unit host

a. 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%.

b. 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%.

c. 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.

Lenovo Computer:

Printer: HP-1018

High temperature control and measuring devices

a. Temperature range of sample chamber: room temperature ~ 500℃;

b. LCD screen display, resolution 0.1K.

Low temperature control and measuring device

a. Temperature range of sample chamber: room temperature ~ liquid nitrogen temperature zone

b. LCD screen display, resolution 0.1K.

Measurement system software

a. The system software model is VSM250, which can directly set system parameters and display data intuitively;

b. 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 directly process the data;

c. 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 Processed on general drawing software;

d. 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);

e. 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).

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