Nanjing Dazhan Thermal Conductivity Tester Brand Manufacturer

Product Introduction

DZDR-AS is a newly launched thermal conductivity tester by Nanjing Dazhan Instrument. It adopts the transient heat source method and has fast measurement speed. It can calculate the thermal conductivity within 160S and automatically adjust the reference and power, greatly improving the efficiency of experiments. At the same time, it has a wide measurement range, no restrictions on the shape of the measured sample, a bidirectional operating system, and color touch screen operation.

Testing principle:

The thermal conductivity tester is an analytical instrument used to measure the thermal conductivity of materials. Its testing principle is the transient plane heat source method based on the one-dimensional non steady state thermal conductivity principle of a plane: in an infinite medium, the plane heat source is subjected to an instantaneous heating pulse in the initial thermal equilibrium state, and a dynamic temperature field is generated inside the medium. Using the temperature data generated by the thermal conduction process, a function curve is fitted to calculate the thermal conductivity and thermal diffusion coefficient of the sample. During testing, a constant direct current is applied to the heat source, causing a temperature rise on the surface of the heat source and an increase in resistance, resulting in an imbalance of the bridge testing system and a potential change. Obtain the function of temperature increase over time based on the variation of electrical parameters.

Test scope:

DZDR-ASThe thermal conductivity tester has a wide measuring range, and has no special requirements for the shape of the measured materials. It only needs a smooth and flat surface, including bulk solids, metals, liquids, powders, colloids, pastes, films, insulation materials, alloys, ores, polymers and foam materials.

Performance advantages:

1. The integrated model design is more lightweight and convenient.

2. The fully automated setting of benchmarks and power greatly improves the efficiency of experiments.

3. The instrument software has been fully upgraded, making the operation more user-friendly and increasing the calculation of specific heat capacity.

4. The supporting analysis software has been upgraded to analyze data more efficiently, allowing for direct calculation of thermal conductivity and thermal conductivity.

Technical parameters: