Thermophysical Transient Tester RT 1.02 for 
measuring specific heat, thermal diffusivity and 
thermal conductivity.

The Laboratory has collected large experience in investigation of the thermophysical properties of materials for many years. The instrument is a result of know how that was reached due to various projects at which the staff of laboratory was confronted with different research goals as well as with requirements coming from the industry. The instrument is based on pulse transient method. Theory, experimental arrangement and application of the method are described in the book by L. Kubicár: Pulse Method of Measuring Basic Thermophysical Parameters (Elsevier 1990).


The instrument gives specific heat, thermal diffusivity and thermal conductivity within a single measurement. 

Transient methods especially the Transient Pulse method posses the following advantages:

  1. Measuring process takes short time ranging from several seconds up to several tenths of minutes

  2. Specimens can be used that have a considerable size range. Thus the reliable data of the thermophysical parameters on in-homogenous materials can be obtained. The method uses simple specimen geometry, namely cylinders or rectangles.

  3. Regime of thermal analysis can be used, i.e. a regime that controls the heating and cooling of the specimen during the measuring process. This regime is a prerequisite for investigation of material aging or structural changes.

  4. Three parameters can be obtained within a single measurement, namely specific heat, thermal diffusivity and thermal conductivity.

  5. Measurements can be fully automated.

The instrument is aimed at metrological laboratories, laboratories involved in material research (investigation of the phase transition, structural relaxation – material aging and the measurement of the basic thermophysical parameters of materials) and testing laboratories (the optimisation of the technological processes and material testing). The instrument can be used for alloys, polymers, ceramics, glasses, product of the powder metallurgy and organic materials.