Fully Automatic/Programmable Video-Based

The ACA 50 is engineered specially for fully automatic/programmable measurement of the wetting behavior of solids (e.g. wafers or glass substrates for flat panel displays) under clean-room conditions, as well as for series tests and systematic analysis. The ACA 50 enables the reduction of subjective factors and time involved for contact angle measurements in research, quality- and production inspection.

For the software-controlled measurement and analysis of

• Static and dynamic contact angle according to the Sessile and Captive Drop method Analysis of the drop shape according to the Pendant Drop method
• Wetting behavior on solid surfaces
• Surface free energy of solids and their components
• Surface and interfacial tension out of the analysis of the drop shape
  

The ACA 50 consists of the basic instrument with the following technical equipment:

• Single needle support or optional a multiple needle support (max. 6 dosing needles and electronic syringe units) with fully automatic needle selection and vertical and horizontal positioning
• Measuring stage, fully automatic adjustable in three axis for accurate sample positioning
• Lens mount with motorized adjustable tilt
• Motorized powerful 7-fold zoom lens with software controlled magnification, aperture and focus
• Video measuring system with high-resolution CCD-camera
• High-performance video digitizing board (frame grabber) for the PC
• Illumination with continuously adjustable intensity for a homogeneous back lighting
• Control and measuring electronics for the teach-in procedure, graphic display with keyboard and video display
• Power supply with automatic voltage adjustment

The 32-bit NT based software SCA 50 developed for Windows 2000/XP offers by various expansion steps. The analyses according to different methods were build-in the software

• Application notes related to this instrument

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