Optical and surface
A dynamic analysis of liquid droplets applied on a material surface can be used to determine the performance of the surface during a later process.
The basic concept of static contact angle has been in use for some 200 years. Today’s camera technology and powerful computers has taken the original concept of static contact angles to a new level, where the dynamic interaction between a liquid droplet and a surface can be studied as a function of time.
Contact angles as a testing method have over the years moved far outside the solid surface applications for which they originally were defined. When the contact angle concept was introduced for several applications some 50 years ago, it was not commonly accepted by the industry because of difficulties in obtaining reliable correlation with experienced problems in printing, coating and gluing applications.
Today the use of dynamic contact angle and sorption as a function of time have gained wide acceptance as reliable test for applications occurring also in fractions of a second. The practical usage of contact angles and the relationship between wetting (contact angle) and sorption (penetration) can explain practical problems related to printing, gluing and coating.
Read more about measuring the dynamic absorption and wetting
Products
Digital microscope
The LAB500 Incorporates a high quality CCD Imaging system and adjustable high-intensity LED lighting to deliver sharp well-lit images from 1x to 500x magnification without changing lenses.
Galaxy 350series
The luminous intensity regulation takes place through a rheostat located on the right-hand side of the microscopebase.Macro and micrometric focusing (graduated, 0.002mm) with coaxial controls.
Varizoom
Binocular stereoscopic zoom microscope with double illumination Optical head: Binocular, inclined at 20° - interpupillary distance adjustment: 45 to 75 mm - dioptric compensation on both eyepiece tubes Eyepieces 10x/22mm super wide-field Magnification zoom system - bilateral knobs three different zoom range from 8x to 80x.
Digital Pocket Microscope (DPM)
This USB Pocket Microscope supports multiple databases and includes a HiRes colour camera with a pixel resolution down to 1.4 µm. The DPM-A software measures automatically dot quality, missing dots, bar codes, mottling, colour and other parameters related to print quality.