The Thermal Constants Analyzer is a non-destructive precision analysis of thermal transport properties including thermal conductivity, thermal diffusivity, and specific heat capacity. The analyzer operates on a wide variety of sensors with radius from 0.5 mm to 30 mm. The test machine operates by pulsing energy into a circular disk sensor and reading a difference in resistivity values over time. These values change as heat is introduced to the material under test. There are two main differentiations between material types. Those that are Isotropic: meaning (the properties are the same in all directions i.e. metals) or Anisotropic: meaning (properties are not the same in all directions i.e. carbon fiber composites). The software for this machine allows RFAL to determine properties for both Isotropic and Anisotropic materials.
Advantages:
- Contact resistance between sensor and sample does not influence measurement results
- Porous and transparent samples are easy to test without modification
- Surface roughness or color does not influence measurement results
- Minimum or no sample preparation time
- Double-sided testing for maximum accuracy
- Three thermal transport properties testing in a single transient
- No calibration or reference sample required
| System Specifications | |
|---|---|
| Manufacturer | HotDisk |
| Type / Model | TPS 2500 S |
| Thermal Conductivity | 0.005 to 1200 W/mK |
| Thermal Diffusivity | 0.1 to 700 mm2/s |
| Measurement Time | 1 to 1280 seconds |
| Reproducibility | Typically better than 1% |
| Accuracy | Better than 5% |
| Temperature Range | -253℃ to 1000℃ |
| Additional Software Module | Anisotropic |
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