RFDA LT80
DESCRIPTION
The RFDA LT80 measurement system is designed to perform impulse excitation measurements in a temperature range from -80°C up to +140 °C. Typically an air atmosphere is used, but a more controlled atmosphere can be obtained with an optionnal inert gasflow. Measurements can be performed in predefined intervals during heating and cooling (1-5 °C/min). The results of these measurements are a plot of frequency, Young’s modulus, Shear modulus, Poisson’s ratio and damping (internal friction) versus temperature. Measurements are performed continuously in predefined intervals during the heating and cooling phase. The adjustable positioning of the excitation system and the front loading of the sample guarantee an optimal sample configuration and manipulation.
| Internal dimensions of the temperature chamber | Width: 400 mm Depth: 400 mm Height: 400 mm |
| Temperature range | -80°C to +140 °C |
| Heating elements | NiCr-strip heater |
| Cooling system | Plate-fin cooler |
| Refrigeration system | Mechanical cascade refrigeration system (Air cooled condensator) Hermetically sealed compressor (R404A/R508A) |
| Heating/cooling rate | 1 – 5 °C/min |
| Isolation material | xxx |
| Furnace wall cooling | N/A |
| Atmosphere | Air (optionally with gas flow) |
| Furnace (sample) loading | Front load |
| Number of samples | 1 |
| Max. length of sample | 150 mm |
| Positioning excitation system | Adjustable in height and positioning |
| Positioning microphone | Height adjustable |
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Application fields
Applicable to a large material range, even porous and brittle materials due to small strains, such as:
– Metals
– Building materials
– Composites
– Coatings
– And many more
