Measurement of thermal conductivity and specific heat - uses hollow sphere enclosing radiating element, with temp. sensor on outside surface monitoring temp. variation with time

摘要

The heat conductivity and specific heat measuring device consists of a heated hollow body. The hollow body is embedded in the medium to be tested and has as small as possible thermal capacity in comparison with the displaced volume. Heat is so applied to its inside by radiation, so that a constant heat flow is generated through its surface. The surface temperature, variable in time, is measured and recorded by a temperature sensor on its surface.