Vibrating Sample Magnetometry
DXV-8000 VSM can be installed with different forms of sample rods. Based on various specially designed sample rods, VSM can measure different forms of samples such as thin films, liquids, powders and blocks. DXV-8000 has a good performance in the measurement of multilayer films and materials with low magnetic moments.
· Measurable samples include: natural magnetic materials, particulate alloys, magnetic semiconductors, magnetic films, thermomagnetic effect materials, etc.
· Measurement results: can measure magnetization curves, hysteresis curves, changes in magnetization intensity over time or temperature angles, etc.
Features:
· The hysteresis loop (M-H) can be tested to obtain parameters such as coercive force, residual magnetization and saturation magnetic moment;
· The magnetic moment temperature curve (M-T), superconducting transition temperature (with low temperature option), and Curie temperature (with high temperature option) can be tested;
· First-order reversal hysteresis (FORC) measurement can be performed;
· The sample can be rotated 360° continuously by electric motor;
· High-precision laser displacement sensor, with a minimum resolution of 1 µm, can distinguish amplitude changes of 1 µm;
· High amplitude stability;
· The sample can be automatically centered, with high accuracy and good repeatability;
· The magnetic moment, magnetic field and temperature values can be continuously collected at intervals of 10ms;
· Support vector magnetic moment test (option);
· A variety of magnetic field and variable temperature options are available to expand the measurement range;
· Novel appearance design, simple operation steps;
· Software language: labview, Easy for users to use and write.
Parameters
Magnetic moment parameters | |
Measuring range | 34x10-9emu ~ 103emu |
Stability | ±0.05% /day |
Repeatability | ±0.5% |
Accuracy | ±1% |
Sensitivity | 10-7emu |
Noise 10s/pt (RMS) | 30nemu |
Noise 10s/pt (P-P) | 80nemu |
Sample mass | 0g - 10g |
Vibration amplitude | 5mm -10mm |
Vibration frequency | 55-85HZ |
The chart shows that the measured noise level is 23.9nemu RMS under 10s data collection interval. The noise level under 10s condition for the whole series is 30nemu (test duration is 600s, zero magnetic field, empty sample cup).
Magnetic field option
Dexinmag's dedicated VSM electromagnet uses a push-pull magnetic pole and has 6 fixed gap positions, with gaps of 7.5mm, 12mm, 20mm, 25mm, 28mm and 50mm respectively. It solves the problem of unevenness of the two surfaces of the magnetic pole retracted through the bearing; and the parallelism of the two surfaces of the magnet is very good, so that the sample can have a very good saddle area; there are mainly two types of magnets, DXWDS130 and DXWDS225, with maximum magnetic fields of 2.8T and 3.2T.
Magnet model | DXWDS-130 | DXWDS-225 | Magnetic field performance | ||
Room temperature measurement | 2.8T | 3.2T | Accuracy | 1% | |
Low temperature measurement | 2.lT | 2.4T | Resolution | 1mOe | |
High temperature measurement | 1.7T | 2.4T | Stability | 100mOe | |
High and low temperature measurement | 2.lT | 2.6T | Rate of change | 10000 Oe/s |
Temperature option
VSM cryostat | |
Temperature range (liquid nitrogen) | 4.2K (minimum temperature) |
Temperature range (liquid nitrogen) | 77.6K (minimum temperature) |
Temperature control accuracy | 0.1K |
Resolution | 0.001K |
Noise | 60nemu |
Sample space | 7mm |
VSM high temperature furnace | |
Temperature range | Room temperature -1273K |
Temperature control accuracy | 0.5K |
Resolution | 0.001K |
Noise | 100nemu |
Sample space | 7mm |
VSM high and low temperature integrated thermostat | |
Temperature range | 100K-950K |
Temperature control accuracy | 0.5K |
Resolution | 0.001K |
Noise | 60-100nemu |
Sample space | 7mm |
Vector coil option
It can realize simultaneous measurement of vector values in the X and Y directions of the sample to facilitate the study of anisotropic magnetic materials and determine their vector magnetization components and magnetic susceptibility tensor. It is also compatible with low-temperature and high-temperature measurements.
Sample rod standard
Other accessories
Product name | Function |
Temperature controller | Use with thermostat |
Mechanical pump set | Roughly draw the vacuum of the cavity |
Molecular pump set | Finely draw the vacuum of the cavity |
Liquid nitrogen tank | Use with infusion tube to store liquid nitrogen |
Infusion tube | Cool with thermostat |
Water cooler | Cool magnets and other equipment |
High temperature sample rod | Measure in high temperature environment |
Disposable sample container | Install samples |
Note: Specific product specifications and models can be configured according to actual user needs |