The Improvement of the Experimental Device of Measuring the Thermal Conductivity of Poor Conductor by Using the Steady State Method.

The traditional steady state method uses infrared bulb as heat producer to measure the thermal conductivity of poor conductor and thermal radiation to heat the measured sample, while the improved heating way uses electric iron as heat source and adopts the way of contact to heat up. The practice shows that the improved way of heating posesses the qualities of easier operation, smaller error of the measuring result, saving electric energy and reducing cost.