TVA100 Contact Angle Measuring Module
- TVA100 Top View Analyzer on EasyDrop
- Measurement in well plates
Drops from a bird's-eye view
The Top View Analyzer TVA100 measures the contact angle from the top using the distance between spots of light reflected from the curved drop surface.
This technique allows nondestructive measurements on concave surfaces or surfaces in recesses in which a measurement of the shadow image with the illumination, sample and optics in a single plane is ruled out.
In addition, the view from above makes wetting inhomogeneities immediately visible. Thanks to the non-sensitive precision drop deposition, the determination of the surface free energy can be carried out with a wide range of liquids. The measuring head is available as a module for the well-proven KRÜSS DSA100, DSA30 and EasyDrop instruments and also as an independent portal system for contact-free measurements on large samples.
An overview of the TVA100
- Evaluation of surface curvature using the mirror images of spots of light
- Measurement on concave surfaces or in depressions
- Robust precision dosing for a wide range of liquids
- Rapid assessment of wetting homogeneity
Available as
- Measurement on mounted PCBs
Applications
- Biotechnology (microtiter plates / 96well plates)
- Microelectronics (mounted PCBs)
- Wafer techniques
- Sanitary ceramics
- Optics (concave lenses)
- Quality control in surface cleaning processes
Technical Data
Measuring range | 3.5° - 23° | 23° - 75° |
Precision * | ±0.1° | ±1° |
Camera | 60 fps, 752×480 Pixel | |
Objective | 6.5× Zoom | |
* Referred to the contact angle standards set
Measuring Methods
- Top View Distance method