TVSM-3000 Vibrating Sample Magnetometer
TVSM-3000 Vibrating Sample Magnetometer
Profile
■ Hysteresis line (M-H) can be tested, coercivity, residual magnetization strength and saturation moment parameters can be obtained.
■ Testing of magnetic moment temperature curve (M-T), superconducting transition temperature (with low-temperature option), Curie temperature point (with high-temperature option).
■ 360° continuous motorized rotation of the vibration head is standard.
■ Sample auto-centering design for high accuracy and repeatability.
(Auto-alignment software interface)
■ Continuous acquisition of magnetic moment, magnetic field and temperature values at 10ms intervals
■ Electromagnet magnetic field changes at rates up to 5000 Oe/s, with hysteresis loops obtained in as little as 14s.
■ 10mm amplitude for a long period of time (24 hours) of five parts per million (5μm) stability can be achieved
■ Support for vector magnetic moment testing (optional)
■ Integrated design of the magnetic moment signal acquisition coil and Gaussmeter probe.
Functions and Features
- The hysteresis loop (M-H) can be tested, and the parameters such as coercivity, residual magnetization and saturation magnetic moment can be obtained;
- Can test the magnetic moment temperature curve (M-T), with the low temperature option can get the superconducting transition temperature, with the high temperature option can get the Curie temperature point;
- System comes standard with a vibrating head with 360 ° continuous electric rotation, and the sample is in the center of the acquisition coil and magnetic field during continuous rotation. Compared with VSM in the form of superconducting magnet,is more convenient for the study of anisotropy;
- Specially designed electromagnet magnetic field gap adjustment method to ensure that the sample rod no longer needs to adjust the center in the left and right directions; Extremely precise mechanical devices ensure that the sample rod is at the center of the front and rear directions of the collection coil every time; The new concept of electric lifting system can automatically complete the adjustment of the sample center position in the up and down direction; The above three aspects of design can greatly improve the accuracy and repeatability of the test;
- Test speed has been revolutionarily accelerated, and the magnetic moment, magnetic field and temperature values can be continuously collected at intervals of 10ms to ensure that users can capture any details of rapid changes in the test process. The change rate of electromagnet magnetic field is as high as 5000 Oe/s, which is a rate that superconducting magnets cannot have. At this high-speed magnetic field change rate and high-speed data acquisition rate, a hysteresis loop can be obtained in 14s;
- Introduces a high-precision laser displacement sensor, which can distinguish the amplitude change of 1 micron, and forms a closed-loop control with a special customized sample vibration drive system, which can achieve a stability of 5/10000 for a long time (24 hours) of 10mm amplitude;
- The option replacement and alignment device with comprehensive design to ensure that the sample vibrates up and down perpendicular to the ground without "hitting the wall" when using all options. Vector magnetic moment test is also supported for high and low temperature options;
- Magnetic moment signal acquisition coil and gauss meter probe are integrated, occupying less space, more convenient installation, and more reliable cables;
- Has a patented appearance design, the ease of operation of replacing samples with one hand, and the human-computer interaction interface of one-key software testing.
- Material to be measured:
Diamagnetic, paramagnetic, ferromagnetic, antiferromagnetic and anisotropic materials granular and continuous magnetic recording materials and GMR, CMR, exchange bias and spin valve materials
Magnetic optical materials Bulk materials, powders, films, single crystals and easy-to-hold liquids
Specifications and Parameters
Magnetic Field Parameters
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Sample Temperature | Air gap between pole heads | Sample Area | 9005 | 9007 | |
Room Temperature | 7.5mm | 3.5mm | 2.78T | 3.01 | |
12mm | 8mm | 2.55T | 2.75 | ||
High and Low Temperature | 20mm | 8mm | 1.30 | 2.36 | |
28mm | 8mm | 1.10 | 2.02 | ||
Magnetic Field Performance | Sample lifting rotation | ||||
Accuracy | 1% | lifting accuracy | 0.1mm | ||
Resolution | 1 mOe | Lifting range | 0 to 300mm | ||
Repeatability | 100 mOe | Rotation range | 0 to 730° | ||
rotation accuracy | 0.1 ° | ||||
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 Temperature(@3.5mm) | 150 nemu | 800nemu | 80 nemu | 380nemu | 40nemu | 80nemu |
High Temperature or Low Temperature(@ 8mm) | 0.5μemu | 2.5μemu | TBD | TBD | 0.1μemu | 0.2μemu |
Dynamic range | 35*10-9emu to 103emu | |||||
Sensitivity | 1x10-7emu | |||||
Time Constant | 0.03s, 0.1s, 0.3s, 1.0s, 3.0s, or 10.0s | |||||
Stability | ±0.05% of full scale/day conditions:fixed coil spacing under constant temperature and magnetic fieldrelativemaximum range and requires2hour heat balance24hours of measured data. | |||||
Repeatability | ± 0.5% conditions:the same coil spacing, repeat loading and removing the sample ten times at the same rangeMeasured. | |||||
Accuracy | ± 1%(contrastNIST 772astandard sample) | |||||
Sample Quality | 0 to 10g Note:of a larger mass sample leads to a decrease in amplitude resulting in a lower signal-to-noise ratio. | |||||
Other parameters | system sampling frequency0.01~10s(continuous mode10ms); lock-in amplifier time constant is fixed100ms, low-pass steep drop18dB/oct; vibration amplitude5 ~10mm(default8mm), vibration frequency55~85Hz(default57Hz). | |||||
sample rod
Room temperature and low temperature sample rod(glass fiber)
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Part Number | can be loaded with samples | Sample Cup Material | Maximum sample space (mm) |
90001 | block | acrylic | Φ4*10 |
90002 | powder | acrylic, disposable | Φ4*10 |
90003 | film, out-of-plane | acrylic | 10*6.4 |
90003m | film, out-of-plane | acrylic, small | 10*2.5 |
90004 | film, in-plane | acrylic | 6.4*10 (6.4*6.4 with thermostat) |
90004m | film, in-plane | acrylic, small | 2.5*10 (2.5*5 with thermostat) |
90005 | liquid | acrylic, sealed O ring | Φ2.5*7.5 |
90001 90002
90003 90003m
90004 90004m
90005
High Temperature Sample Rod (Quartz) | |||
Number | can be loaded with samples | Sample Cup Material | Maximum sample space (mm) |
90011 | block and powder | boron nitride, disposable when filling powder | Φ4*10 |
90012 | film, out-of-plane | boron nitride | 13*6 |
90013 | film, in-plane | boron nitride | 6.4*6.4 |
90011
90012
90013
Temperature Range | |
High Temperature Range | 80K-350K |
Low Temperature | RT-1000K |
Cryostat
High temperature furnace
