Functional Material Measurement
Insulation Resistance Tester
The high temperature insulation resistance tester uses the parallel plate method design principle and a unique resistance test system to improve fixture anti-interference capability, repeatability and stability, delivering significantly enhanced measurement accuracy.
It is suitable for product testing and research on the electrical properties of new functional materials, and is designed according to GB/T 10518-2006 and relevant ASTM standards, with comprehensive safety and data protection mechanisms for reliable operation.
Product Overview
The high temperature insulation resistance tester uses the parallel plate method design principle for measurement. Using a unique resistance test system, the anti-interference ability of the fixture is improved, providing better repeatability and stability with significantly improved measurement accuracy.
This system can be used for product testing and research on the electrical properties of new functional materials. The high-temperature insulation resistance tester (infrared reflector furnace) is designed according to the standard GB/T 10518-2006 Test Method for Resistance and Resistivity of Insulating Materials at High Temperature and also refers to the American ASTM standard.
Multiple safety protection designs are implemented to ensure safe operation under abnormal conditions such as over-voltage, over-current and over-temperature. The system also includes a data protection mechanism that safely stores measurement data even in the event of computer errors or power interruptions, allowing original test data to be restored after restart.
Features
- Multifunctional infrared reflection furnace allowing electrical testing in high temperature, vacuum and atmospheric environments.
- Platinum measurement wires reduce signal attenuation and improve measurement accuracy.
- Equipped with a water cooling device for faster cooling and higher efficiency.
- Supports uniform temperature rise and step temperature rise measurement modes.
- Imported temperature sensor and PID automatic temperature control for high accuracy.
- Near-infrared heating provides uniform sample heating with no induced current.
- 10-inch imported touch screen with integrated mechanical structure design for higher stability and reliability.
- Imported high-frequency test cables with stronger anti-interference ability and higher data acquisition accuracy.
- 99 alumina ceramic insulation with platinum electrode clamp.
- Dexinmag control analysis software compatible with functional testing platform systems.
Measured Parameters
| Temperature range | RT – 800°C (max: 1650°C) |
| Sample size | φ < 25 mm, d < 4 mm |
| Temperature control accuracy | ±1°C |
| Electrode material | Platinum |
| Temperature rising slope | 10°C/min (adjustable) |
| Clamp auxiliary material | 99 alumina ceramic |
| Resistance | 1 × 10¹⁶ Ω |
| Insulating material | 99 alumina ceramic |
| Resistivity | 1 × 10³ – 10¹⁶ Ω·cm |
| Data transmission | 4 USB interfaces |
| Input voltage | 110 – 220 V |
| Equipment size | 600 × 500 × 350 mm |
Eliminate the influence of network harmonics on acquisition accuracy
During measurement of ultra-high resistance and weak signals, input bias current and leakage current may cause measurement errors. In addition, many high-frequency and high-power devices such as frequency converters introduce harmonic interference in the power grid.
Dexinmag's anti-interference module combined with advanced test analysis technology achieves measurement resolution up to 1 fA (10⁻¹⁵ A). This allows precise testing of semiconductors, functional materials and nano-devices.
Automatic Averaging Function
Automatic averaging detects current changes and averages them automatically without changing measurement settings. This function eliminates deviations caused by unstable contact or excessive charging current response.
The current input port uses a large-diameter triaxial connector with a three-layer coaxial structure: the inner conductor is connected to GUARD (COM), and the outer shield is connected to GND. This design improves anti-interference capability and reliability during high-voltage testing.
Heating Method
Most domestic high-temperature heating methods use tubular furnaces or muffle furnaces, which heat the furnace body using heating wires or silicon carbon rods, resulting in slow heating and cooling speeds and uneven temperature distribution.
Dexinmag has developed a paraboloid infrared reflection furnace with high reflectivity and high-precision heating capability. Advantages include:
- High-speed heating
- Wide uniform heating zone
- High-speed cooling
- Quartz tube protection to prevent atmospheric contamination
- Support for vacuum and high-purity gas heating environments
The system can be configured as a uniform high-speed heating furnace, temperature slope furnace or stage heating furnace.
High Speed Heating and Cooling
High-energy infrared lamps and gold-coated reflectors allow rapid heating to high temperatures. The furnace can also include water cooling systems and gas cooling devices, enabling rapid cooling and improving testing efficiency.
Temperature Control
The infrared gold-plated focusing furnace combined with a temperature controller allows precise sample temperature control. The system provides accurate temperature holding, adjustable cooling rate and stable temperature maintenance at any set point.
Heating and Cooling in Different Environments
The system supports heating and cooling in vacuum environments, atmospheric environments and low-temperature environments using high-purity inert gases. Quartz glass structures allow infrared radiation to be delivered effectively to heating and cooling chambers.
Operational Software
The system software platform is developed using LabVIEW, providing stable and safe operation with automatic saving of power-off data, image data storage and recovery. It is compatible with Windows XP, Windows 7 and Windows 10.
Additional functions include a multilingual interface (Chinese / English), system status monitoring, legend and status management, user permission management, fault alarm system and customizable test report generation with export to Excel and PDF formats.
Application Scenarios
