Wetting measurements in depressions and on concave surfaces
The TVA100B Top View Analyzer is the only instrument in the world to use the top-view distance method for measuring the contact angel of a liquid on a solid from above. The innovative measuring method is particularly suitable for measurements in depressions and on concave surfaces where drops cannot be analyzed using the usual side view.
A further strength of the TVA100B lies in the especially high precision in the range of very low contact angles, which makes it an ideal tool for assessing the cleanliness of glass, for example.
MEASURING METHOD
MEASURING RESULTS
INSTRUMENT DIMENSIONS
| Footprint | 610 mm × 250 mm (W × D) |
|---|---|
| Height | 430 mm |
| Weight (without accessories) | 10 kg |
POWER SUPPLY
| Voltage | 12 V |
|---|---|
| Power consumption | 40 W |
SAMPLE DIMENSIONS
| Maximum sample size | 300 mm × ∞ × 50 mm (W × D × H) |
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ENVIRONMENT
| Operating temperature | 10 to 40 °C |
|---|---|
| Storage temperature | -10 to 70 °C |
| Humidity | without condensation |
INTERFACES
| PC | USB 3.0 |
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SOFTWARE
| Software type | ADVANCE |
|---|---|
| Available software modules | contact angle surface free energy of solids (optional) |
SURFACE FREE ENERGY OF SOLIDS
| Results | surface free energy (SFE) |
|---|---|
| Models | equation of state Zisman Fowkes Wu Owens-Wendt-Rabel-Kaelble extended Fowkes acid-base theory |
SESSILE DROP
| Results | contact angle |
|---|---|
| Range | 3.5 to 23° (±0.1°), 23 to 75° (±1°) |
| Models | reflecting curve |
| Type | static |
CAMERA SYSTEM (STANDARD)
| Type | Camera CF04 |
|---|---|
| Connection | USB 3.0 |
| Resolution | 1920 × 1200 px |
| Frame rate | 2300 fps |
| Dark noise | 7 electrons |
| Dynamic range | 73 dB |
ILLUMINATION
| Type | LED illumination with manual dimmer |
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OPTICS (STANDARD)
| Focus | manual |
|---|---|
| Zoom | 6.5× zoom, manual |
| Field of view | CF04: 1.6 mm × 1.6 mm to 9.1 mm × 9.1 mm |
| Resolution of optics | CF04: 1.2 μm |
DOSING SYSTEM
| Dosing | electronic pipette |
|---|---|
| Drop deposition | manual |
| Cartridge/syringe (volume) | disposable tips (0.1 to 10 μL) |
OPTICS (OPTIONAL)
| Field of view | – |
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DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
Tensiometers
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
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