Description
The Soil Conductivity Meter is a portable thermal conductivity meter used to measure thermal conductivity and thermal resistivity. Perfect for testing the thermal conductivity of soil, polymers, viscous liquids, and other soft materials; as well as testing the thermal conductivity of concrete, rock, stone, or other hard materials. Tests can be performed with the push of a button. The collected data is automatically analyzed and
results are displayed immediately.
The Transient Line Source follows ASTM D5334. The sensor needle consists of a thin heating wire and temperature sensor
sealed in a 100 or 50 mm steel tube.
The sensor is completely inserted into the sample to be tested. Heat is delivered to the sample using a constant current source (q) and the temperature rise is recorded over a defined period of time. The slope (a) from a plot of temperature rise versus the logarithm of time is used in the calculation of
thermal conductivity (k). The higher the thermal conductivity of a sample, the lower the slope. For samples of low thermal
conductivity, the higher the slope.
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