Description
The OCA 25 is the all-purpose measuring device for contact angle measurements and drop shape analysis.
The sample table of the OCA 25 is adjustable along all three directions in space via precision axes with hand wheels. Hence, a fast and exact manual positioning of the sample is always guaranteed, even when using high-performance temperature chambers like the electrical temperature control unit TEC 700U.
Analysis of even the fastest processes is possible recording up to 4276 frames/s using the 6.5-fold zoom lens and the high-performance camera with USB 3 interface. Hence, contact angles on adsorbing surfaces like tissues or powders can be measured reliably.
For dosing liquids the manual single and double direct dosing systems SD-DM and DD-DM can be used as well as the electronic multiple direct dosing systems DDE/x.
The latter are able to electronically position one to four electronic syringe modules ESr-N.
Furthermore, a nanolitre dosing system can be used to generate extra small liquid drops.
Even these are no challenge for the OCA 25 due to its high resolution optics. OCA 25 with DDE/3
Even smaller structures can be analyzed using the picolitre dosing system PDDS which can dose down to 30 picolitre small droplets. These allow contact angle measurement, for example, on the individual wires of the mesh structure of a coronary stent or on single fibers. Main features:
- sample table adjustable in all three axis with precision mechanics
- high performance 6.5-fold zoom lens
- integrated continuous fine focus, and adjustable observation angle
- video measuring system with high-performance camera using USB 3 interface
- LED-lighting with manual and software controlled intensity including automatic temperature drift compensation.
