Kibron DeltaPi > standard configuration
Physical dimension
| Base mechanics | 33 x 14 x 6 (h) cm ( 13 x 5.5 x 2.4 inches) |
| 0.85 kg ( 1.8 lbs) | |
| Electronics | 27 x 23 x 8 cm (10.6 x 9 x 3.1 inches) |
| Total weight | 2.8 kg (5.9 lbs) |
Measurement of surface tension and surface pressure
| Principle | Wilhelmy method using a small diameter ( 0.51 mm) |
| special alloy wire. No artefactual hysteresis as when | |
| using the conventional Pt-plates. No drying and | |
| accumulation of salt which cause significant errors | |
| when filter paper is used. | |
| Dynamic range | 0 to 130 mN/m |
| Resolution | 10 µN/m |
| Temperature sensor | Automatic monitoring and display of temperature |
| in the course of the experiment, resolution | |
| 0.1 degrees (optional feature) |
Troughs
| Materials | Metal alloy and high purity PTFE. Several designs available. |
| Also user-defined designs are routinely made. | |
| Volume | 300 µl in surface pressure measurements. |
| Subphase can be magnetically stirred. |
- The DeltaPi tensiometer is equipped with a single sensor.
