Temperature control for MCR:
Temperature devices for effective and convenient heating and cooling
Plate systems for configurations with one drive
Cone-plate (CP) and parallel-plate (PP) Peltier temperature devices offer fast and accurate temperature control from -40 °C to 200 °C. The system can be combined with a patented Peltier hood (US Patent 6,571,610) to ensure a sample temperature with minimized gradients over the entire temperature range. The Peltier temperature device is the dedicated version available for measurements on asphalt and bitumen according to AASHTO T315. Optionally, systems with the patented TruGap™ feature (US Patent 6,499,336) can be used to measure and adjust the real gap even during the measurement to prevent errors in gap size due to thermal expansion or contraction.
Cylinder systems for configurations with one drive
The Peltier temperature devices for cylinders comprise an innovative heat transfer system for fast and accurate temperature control from -30 °C to 200 °C when working with fluid circulator counter-cooling, or from 0 °C to 180 °C using the air-counter-cooled device. The temperature device is dedicated for the use with concentric cylinder and double-gap measuring systems. In addition, a Peltier temperature device is available which can be combined with pressure cells to measure in a closed environment or under increased pressure.
Cylinder and plate systems for configurations with two drives
For rheometer configurations using two rotational drives, a special Peltier temperature device ensures precise temperature control in a temperature range from -20 °C to 180 °C for cone-plate and parallel-plate systems, and -20 °C to 150 °C for concentric cylinder and double-gap measuring systems. The setup enables you to perform measurements in separate motor transducer mode or counter-movement mode and features a thermally coupled hood which ensures the lowest temperature gradients within the sample. In addition, the lower measuring systems contain a temperature sensor near the sample which guarantees the detection of the true sample temperature as accurately as possible.
Ready for advanced material characterization
Besides the standard Peltier temperature devices, Anton Paar offers modular Peltier systems that can be combined with rheo microscopes, a small angle light scattering system, a polarized imaging option, a Raman spectrometer, or self-designed optical accessories. This provides information on the smallest microstructure changes in the sample. Simultaneously, the macroscopic ‘big picture’ is determined with rheological measurements. The temperature control unit, suitable to cover a temperature range from -20 °C to 200 °C, can also be combined with a UV light option to perform rheological characterization of UV-reactive samples.
Additional accessories and solutions
In addition to standard models, devices with disposable measuring systems and application-specific surfaces are available to meet even sophisticated measuring demands (e.g. to prevent wall slip or characterize curing reactions). The Peltier temperature device can be combined with solvent traps to prevent evaporation and drying of the sample (for coatings, paints, and food rheology), or an immersion option to characterize the sample in a fluid environment.
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