Introduction
      Transient Plane Source Method (TPS）is invented by a Sweden Scientist Dr. Silas Gustafsson in 1991.  The draft version of an international standard for TPS is firstly issued in 2008, and it is updated in 2022. 
      A-1800 Thermal Constants Analyzer is the most advanced TPS instrument manufactured by FOREDA, which can measure almost all types of materials currently available in the world.
 

Properties

• Three parameters,  thermal conductivity, thermal diffusivity, and volumetric heat capacity can be obtained with one single test
• Test is done in seconds without balancing the electrical bridge;
• Test Data can be saved in Excel format for further applications;
• Software can be run in any Windows computer for off-line data analysis;
• Very large thermal conductivity range: almost all kinds of materials can be tested;
• Applicable for all kinds of specimens:  solid, liquid, gas, powders, colloid, anisotropic; or cylindrical, triangle, films, slabs, etc.;
• Specimens Easily prepared: only one flat surface is required;
• Absolute measurement without calibration;
• Possibly very large temperature range: - 270 ~ 1000℃.

Specifications
      Power supply：AC 220V±5%, 100W 
     Thermal conductivity measurement：
              range:           0.001～1800 W/(m·K)
              repeatability: ±1.0%
              accuracy:      ±2.5%
     Thermal diffusivity measurement：
              range:           0.1～250 mm^2/s
              repeatability: ±3.5%
              accuracy:      ±5.0%
      Volumetric heat capacity measurement：
              range:           0～20 MJ/(m^3·K)
              repeatability: ±5.5%
              accuracy:      ±7.0%
      Test time: 2 ~ 1024 s
      Specimen size requirement:
             Lateral:     ≥ ϕ10 mm
            Thickness: ≥ 2.5 mm
      Size of the Electronics: 556 (length)×360(thickness)×215 mm (height)