Quick surface tensions with an easy available tensiometer
Ring and plate tensiometry belong to the classical methods for measuring the surface tension of liquids.
The principle is to measure the weight of a meniscus hanging on a ring or plate.
Our solution does not require an extra force transducer. An analytical laboratory balance (better than 0.1 mg) will complete this instrument. Easy handling and operation with a modern Windows software.
Both manual and automatic versions are available.
The density of a liquid can be measured as well by the immersion of a body of known volume.
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Instrument parts |
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- Laboratory balance (better 0.1 mg)
- Automatically motor driven movement of the ring or plate or manual movement by a linear stage
- Holder for a ring, plate or immersion body
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The instrument allows the following measurements |
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- Surface tension of liquids
- Ring and plate method
- Determination of density with an immersion body
- Corrections factors after Harkins and Jordan
- Contact angle measurements with the immersing plate technique
- Easy to handle instrument and software
- Also available as manual instrument
- Use with any PC or laptop
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Technical |
Data |
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| Range of surface and interfacial tension |
1 to 1000 mN/m;
Resolution: ± 0.1 mN/m |
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| Time Range |
1 s to 10 h |
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| Measuring options: |
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Du Nouy ring method |
Standard routing |
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Wilhelmy plate method |
Standard including contact angle |
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Density determination |
For liquids density > 2 g/cm3 |
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| Range of contact angle measurement |
10° to 180°
Accuracy ± 0.3° |
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| Software |
Windows
(Free update over 1 year after purchase) |
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