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[China]
Trade Verify
Address: No.5616th, Caoan Road, Jiading District, Shanghai
Contact name:Clarke Wang
Shanghai Glomro Industrial Co., Ltd. |
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Introduction:
The thermal conductivity meter uses the transient plane source technique (TPS). Test performance is stable and data processing and analysis capability is high, can be used for thermal conductivity measurement of a variety of different types of materials.
More advantages:
1. A wide test range performance, stable test performance,at the advanced level of its similar instruments in the country.
2. Intelligent man-machine interface, large color screen LCD.
3. Simple operation, short experimental testing time.
4. Intelligent data processing, highly automated computer data communication system and report processing system.
5. Automatic generation of test reports, connect the printer to print. Software built experimental records, data processing and reporting formats, automatic test report issued.
Working principle:
Transient planar heat source technology (TPS) is a new method for measuring thermal conductivity, developed by Professor Silas Gustafsson of the University of Technology, Chalmer, Sweden, based on the hotline method. Its principle of determining the thermal properties of a material is based on the transient temperature response produced by a step-heated disk-shaped heat source in an infinite medium. A flat probe is made of a thermally resistive material, and serves as both a heat source and a temperature sensor. The thermal resistance coefficient of the alloy has a linear relationship with the relationship between temperature and resistance. That is, the heat loss can be known by understanding the change of the resistance, thereby reflecting the thermal conductivity of the sample.The continuous double-spiral structure sheet formed by etching after gold etching has a double-layer insulating protective layer and a thin thickness, which makes the probe have a certain mechanical strength and maintain electrical insulation from the sample. During the test, the probe was placed in the middle of the sample for testing. When the current passes through the probe, a certain temperature rise occurs, and the generated heat is simultaneously diffused to the samples on both sides of the probe. The speed of thermal diffusion depends on the heat transfer characteristics of the material. By recording the temperature and the response time of the probe,The thermal conductivity can be directly obtained from the mathematical model.
Testing object:
Material Type: metals, ceramics, alloys, minerals, polymers, composites, paper, fabric, foam (flat surface insulating materials, sheet metal), polyurethane, phenolic, urea-formaldehyde, mineral wool (glass wool, rock wool, mineral wool), cement walls, glass reinforced composite panels CRC, cement polystyrene plates, sandwich concrete, glass and steel panels composite plates, paper honeycomb panels.
Technical Parameters:
| Test range | 0.005—300W/(m*K) |
| Measuring temperature range | room temperature-130℃ |
| Probe diameter | No. 1 probe 7.5 mm; No. 2 probe 15mm |
| Accuracy | ±3% |
| Repeatability error | ≤3% |
| Measuring time | 5 ~ 160 seconds |
| Sample temperature rise | less than15℃ |
| Power | AC 220V |
| The temperature rise of the sample | < 15 C |
| Test sample power P | No. 1 probe power 0; No. 2 probe power 0 |
| Sample size | single sample (15*15*3.75mm) measured by No. 1 probe; single Sample (30*30*7.5mm) measured by No. 2 probe |
| Note: The measured is low by thinner material thickness (lambda = 0.2W/ (m*K)). As the surface of the sample is smooth and sticky, the sample can be superimposed. | |
