Measures shear rheology after torsion pendulum principle
This instrument allows measuring the interfacial shear properties of layers between two fluids (liquid/liquid or liquid/gas).
The main principle is a torsion pendulum.
Different measuring bodies are used to work at liquid surfaces or at interfaces between two immiscible liquids.
The ISR-1 (Interfacial Shear Rheometer) from SINTERFACE allows unique shear rheological experiments.
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Instrument parts |
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- Mechanical and electronic unit
- Temperature controlled measuring cell
- Data acquisition via RS-232
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The instrument allows the following measurements |
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- Frequency range between 0.2 and 0.02 Hz (depending on the measuring body and the torsion wire used)
- Shear elasticity and viscosity of a surface layer
- Time resolution about 1 minute
- Time dependencies over hours of adsorption time
- Surface shear viscosity range 1 µNs/m to 100 mNs/m
- Surface shear elasticity range 1 µPam to 100 mPam
- Temperature control in the range 10 to 50 °C
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