CMT-30 Permanent Magnet Hall Effect Measurement Meter
CMT - 30 provides accurate Hall effect measurements using a permanent magnet setup, ideal for basic magnetic field testing and sensor evaluation.
CONTACT USCMT-30 Permanent Magnet Hall Effect Measurement Meter
Product Overview
The CMT-30 Permanent Magnet Hall Effect Measurement Meter is a precision instrument designed for analyzing the electrical properties of semiconductor materials. This system enables accurate measurement of carrier concentration, mobility, resistivity, and the Hall coefficient, offering critical insights into material performance in both research and teaching applications.
Key Features
- ✅ Non-destructive testing of semiconductor thin films and bulk samples
- ✅ Integrated measurement of carrier transport characteristics
- ✅ Compact, stable, and ideal for lab environments
- ✅ Suitable for both academic teaching and industrial R&D
Applications
- Semiconductor material characterization
- Device physics research
- Electrical transport property analysis
- Educational demonstrations and laboratory training
Why Choose Cryomagtech CMT-30?
- 🌟 Backed by decades of scientific research in Hall effect testing
- 🌟 Developed in collaboration with leading research institutions
- 🌟 Optimized for precision, repeatability, and user-friendliness
- 🌟 Flexible configuration options to suit specific research or educational needs
Technical Support & Expertise
Cryomagtech's Hall measurement systems are developed with technical guidance from top scientific institutions specializing in solid-state physics and semiconductor analysis. Our team is dedicated to offering reliable support and customization based on customer needs.
Looking for Custom Solutions?
We offer customizable configurations tailored to your application scenarios, including different magnetic field strengths, sample holders, and temperature environments. Contact us for a tailored solution.
Parameters of CMT-30 Permanent Magnet Hall Effect Measurement Meter
| Physical parameters | Carrier concentration | 10³cm⁻³ - 10²³cm⁻³ |
| Mobility | 0 .1 cm²/ volt*sec - 10⁸cm²/ volt*sec | |
| Resistivity range | 10-5 Ohm*cm - 107 Ohm*cm | |
| Hall voltage | 1 uV - 3V | |
| Hall coefficient | 10⁻⁵ - 10²⁷cm³/ C | |
| Testable material type | Semiconductor material | SiGe, SiC, InAs, InGaAs, InP,AlGaAs, HgCdTe and ferrite materials etc. |
| low resistance material | Graphene, metals, transparent oxides, weakly magnetic semiconductor materials, TMR materials, etc. | |
| high resistance material | Semi-insulating GaAs, GaN, CdTe, etc. | |
| Material Conductive Particles | Type P and Type N testing of materials | |
| Magnetic field environment | Magnet Type | Nuclear magnetic resonance NMR series permanent magnets |
| Magnitude of magnetic field | 500mT (Pole head spacing: 18mm) | |
| Optional magnetic environment | The electromagnet of relevant magnetic size can be customized according to the needs of customers | |
| Electrical parameters | Current source | 50.00nA- 50.00mA |
| Current source resolution | 0.0001uA | |
| Measuring voltage | 0 ~ ±3V | |
| Voltage measurement resolution | 0.0001 mV | |
| Other Accessories | Shading | Extern ally installed light-shielding parts make the test material more stable |
| Sample size | Maximum 30mm * 30mm | |
| Box cabinet | 600*600*1000mm | |
| Test piece | Hall effect of Institute of Semiconductors, Chinese Academy of Sciences Standard test samples and data: 1 set | |
| (Si, Ge, GaAs, lnSb) | ||
| Making ohmic contacts | Electric soldering iron, indium chip, solder, enameled wire, etc. | |
| One-button automatic measurement can be performed without the need for human operation after the test is started | ||
| The software can perform I-V curve and BV curve | ||
| Set in software for automatic temperature measurement | ||
| The experimental results are measured, and the data will be temporarily saved in the software. If long-term storage is required, the data can be exported to an EXCEL table to facilitate later data processing. | ||
| Provide the Hall effect standard test samples and data of the Institute of Semiconductors, Chinese Academy of Sciences: 1 set | ||
Testable samples of hall effect apparatus:
System Components
1. High-Uniformity Permanent Magnet Assembly
The CMT-30 system integrates a pair of high-stability permanent magnets that form a stable magnetic field environment for Hall measurements.
- Magnetic Field Strength: Approx. 500 mT (actual value calibrated before shipment)
- Pole Gap: 18 mm
- Pole Diameter: Outer: 48 mm / Pole face: 33 mm
- Field Uniformity: 1~5×10⁻⁵ over the central test region
- Magnet Type: Nuclear Magnetic Resonance (NMR)-grade magnets, offering superior long-term stability and ultra-low field variation
- Customization: Magnetic field strength and geometry can be customized based on experimental requirements
2. CMT-320 Precision Constant Current Source & Switching Unit
CMT-320 is an integrated current source and switching controller designed specifically for Hall effect testing. It simplifies wiring and minimizes manual operation.
- Current Output Resolution: 0.0001 μA
- Voltage Measurement Resolution: 0.0001 mV
- Current Range: 50.00 nA to 50.00 mA, adjustable in 0.1 nA steps
- Voltage Range: 0 ~ ±3 V, supporting high-resistance sample measurements
- Auto-Switching: Built-in 4-phase switching array enables fully automated Hall voltage detection (van der Pauw method supported)
- Interface: User-friendly GUI and full PC software command protocol available
3. CMT-35 Smart Sample Stage & Control Software
The sample stage integrates with intelligent software to achieve seamless data acquisition and analysis.
- Automated Testing: One-click measurement with real-time polarity switch guidance
- Parameter Setup: Software allows user-defined sample parameters, automatic result calculation
- Data Visualization: I-V and B-V curves supported
- Modular Interface: Easy function expansion and secondary development
- Data Export: Results saved temporarily or exported as Excel files for archiving and analysis
4. Standard Accessories & Tools
To facilitate smooth setup and operation, the system includes the following auxiliary tools and components:
- Magnet Positioning Fixture: Ensures consistent magnet alignment across tests
- Standard Hall Sample: Certified sample + calibration data from the Institute of Semiconductors, Chinese Academy of Sciences
- Contact Tools: Includes soldering iron, indium foil, solder, enameled wire, etc., for reliable ohmic contacts
- Communication Cable: RS232-to-USB adapter for host PC integration