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I、Product Introduction
The thermal conductivity meter using short-hot wire method is based on the conservation of energy, which solves the thermal conductivity and thermal diffusion coefficient of the liquid by solving the steady-state thermal conductivity problem, and derives the thermal conductivity of the liquid medium by measuring the temperature rise response of the sensor.
The short hot wire method for measuring thermal conductivity belongs to the transient test method, which has the advantages of short test time, fast speed, small sample volume, and can effectively detect and eliminate the influence of natural convection on the measurement. The supporting control and analysis system of this equipment is independently developed and has test to be accurate. The sensor can measure the thermal conductivity of molten salt without special insulation treatment. This equipment is developed for molten salt and can be further extended to the measurement of thermal conductivity of other melts and even gases.
II、Product Features
The equipment is composed of heating system, voltage acquisition system, sample preparation assembly, acquisition and analysis system. Its layout is as follows:
1. High precision power supply and test instrument, high test accuracy.
2. Wide range of application, can be used for the measurement of thermal conductivity of liquid and gas samples.
3. Short test time and fast test speed.
III、Product Parameters
The short hot wire thermal conductivity instrument can achieve the following indicators:
1 | Measurement method | short hot wire method |
2 | Temperature range | RT~1200℃;±0.5℃ |
3 | Voltage accuracy | 0.00001 mV |
4 | voltage resolution | 0.1μV~1mv |
5 | Maximum power output | ±220V/0.11A |
6 | Thermal conductivity accuracy | 3% |
7 | Accuracy of thermal diffusion coefficient | 12% |
8 | Use atmosphere | inert atmosphere |
9 | Voltage range | 100.0000mV~1000.000V |
10 | Measurement accuracy | thermal conductivity is 3%, thermal diffusion coefficient is 12% |