Method Comparison Chart

Scroll horizontally to view our thermal properties method comparison chart. Click here to download a PDF copy.


Methods Comparison TPS Testing Method Comparison
TPS
HFM Testing Method Comparison
HFM
THW Testing Method Comparison
THW
TLS Testing Method Comparison
TLS
LFA Testing Method Comparison
LFA
GHP Testing Method Comparison
GHP
GHFM Testing Method Comparison
GHFM
MTPS Testing Method Comparison
MTPS
Accuracy ± 5% ± 3% ± 5% ± 5% ± 5 to 7% ± 2% ± 5% ± 5 to 15%
Measured Property Thermal Conductivity,
Thermal Diffusivity,
Specific Heat 1
Thermal Resistance,
Thermal Conductivity 1
Thermal Conductivity,
Thermal Diffusivity,
Specific Heat 1
Thermal Conductivity,
Thermal Resistivity 1
Thermal Diffusivity,
Specific Heat 1,
Thermal Conductivity 1
Thermal Resistance,
Thermal Conductivity 1
Thermal Resistance,
Thermal Conductivity 1
Thermal Effusivity,
Thermal Conductivity 1
Temperature Range -160 to 1000°C -20 to 70°C -50 to 400°C -40 to 100°C -253 to 2800°C -160 to 600°C -20 to 300°C -50 to 200°C
Materials Solids, Liquids, Pastes, & Powders Solids – Insulation Liquids and Pastes Soils, Rocks, & Plastics Solids Solids – Insulation Solids Solids, Liquids, & Paste
Calibration None – Absolute Measurement Single – Offset Single – Offset Multiple – Offset None – Absolute Measurement None – Absolute Measurement Single – Offset Multiple – Secondary
Contact Resistance Removed After Measurement Removed Through Calibration N/A Contact Paste Graphite Spray Contact Paste Contact Paste Water & Contact Paste
Penetration Depth Up to 180 mm Entire Sample < 1 mm < 50 mm Entire Sample Entire Sample Entire Sample 0.1 to 3 mm
Heterogenous Samples < 10 mm scale < 20 mm scale < 1 mm scale < 10 mm scale < 0.1 mm scale < 20 mm scale < 5 mm scale < 0.05 mm scale
Theory Scientifically Reviewed Several Published Papers Several Published Papers Several Published Papers Several Published Papers Several Published Papers Several Published Papers Several Published Papers One Published Paper

Specifications sourced from user manuals and available literature.
1 Italicized property delineates calculated properties.

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