Micro-Droplet Contact Angle Analyzer: MCA-4
High-Precision Wettability Measurement for Micro-Scale Surfaces
The MCA-4 Micro-Droplet Contact Angle Analyzer is a specialized contact angle measurement system designed for accurate wettability analysis on extremely small and localized surface areas. Unlike conventional contact angle meters that require millimeter-scale droplets and flat surfaces, the MCA-4 enables reliable contact angle measurement using pico-liter droplets on micro-structured, narrow, or limited regions.
With its electric micro-injector, dual optical system (side view and top view), and high-speed imaging, the MCA-4 is the ideal solution for microelectronics, advanced materials, precision manufacturing, and research applications where standard contact angle instruments cannot be used. An optional jacket-type heated stage supports temperature-dependent wettability studies.
Key Features:
Micro-Droplet Contact Angle Measurement (10–1000 pL)
• Enables contact angle measurement on areas as small as approximately 100 × 100 µm
• Ideal for samples where conventional droplet volumes are too large
This allows accurate wettability evaluation on micro-patterns, narrow tracks, thin wires, and localized surface treatments.
Electric Micro-Injector for Stable Droplet Generation
• Supports multiple capillary sizes for flexible droplet volume control
• Minimizes vibration and droplet shape instability
Ensures consistent measurement conditions even at extremely small volumes.
Dual Optical System: Side View + Top View
• Top-view camera enables:
• Accurate droplet positioning in confined or patterned areas
• Observation of spreading behavior and three-phase contact line geometry
This unique optical configuration allows measurements in locations where side-view observation alone is insufficient.
High-Speed Imaging for Fast Wetting Phenomena
• High-speed mode up to 2,700 fps (reduced vertical resolution)
• Suitable for fast evaporation liquids and rapid wetting processes
This makes the MCA-4 especially effective for studying dynamic wetting on micro-surfaces.
High-Magnification Optical System
• Measurement range from ~75 × 56 µm to ~910 × 680 µm
• Clear droplet edge detection even on very small samples
Ensures accurate image analysis across different micro-scale applications.
Precision XYZ Micro-Stage
• Fine X, Y, and Z positioning for accurate droplet placement
• Enables measurement on specific regions of complex samples
• Essential for repeatable analysis on micro-structured surfaces
The modular design allows the DMo-WA system to evolve with changing research or production needs.
Automatic Image Analysis with FAMAS Software
• Multiple contact angle evaluation methods: θ/2 (height–width method), Tangent method, Ellipse fitting, Circle fitting
• Automatic data output and report generation
Provides operator-independent, reproducible contact angle results.
Surface Free Energy Analysis
Enables quantitative evaluation of surface polarity and adhesion behavior at the micro scale.