Fully Automated Contact Angle Meter: DMo-902, DMo-702, DMo-602, DMo-502
Modular, High-Precision Systems for Advanced Wettability & Surface Free Energy Analysis
The DMo series contact angle meters (DMo-902, DMo-702, DMo-602, DMo-502) are modular, research-grade surface analysis systems designed for accurate measurement of static and dynamic contact angles, surface free energy, and – with optional modules – surface and interfacial tension.
All models share the same optical measurement principle, high-speed imaging, and FAMAS image analysis software. The primary difference between models is the level of automation for droplet dispensing, positioning, and stage movement, allowing users to select the optimal balance between throughput, flexibility, and budget.
Key Features:
High-Quality Optical System
• Precision optics optimized for sharp droplet edge detection
• Stable illumination for high contrast between droplet and background
• Enables reliable measurements across hydrophilic to super-hydrophobic surfaces
This ensures consistent and reproducible contact angle data, even on low-contrast or treated surfaces.
• Stable illumination for high contrast between droplet and background
• Enables reliable measurements across hydrophilic to super-hydrophobic surfaces
This ensures consistent and reproducible contact angle data, even on low-contrast or treated surfaces.
Automatic Droplet Recognition & Image Analysis
• Automatic droplet contour detection using Kyowa analysis software
• Reduces operator dependency and subjective interpretation
• Ensures high repeatability across users and laboratories
• Reduces operator dependency and subjective interpretation
• Ensures high repeatability across users and laboratories
Multiple Contact Angle Calculation Methods
The DMo series supports a comprehensive range of analysis models:
• θ/2 (height–width method)
• Tangent method
• Ellipse fitting
• Circle fitting
Users can select the most appropriate method depending on surface roughness, droplet shape, or wettability range.
• θ/2 (height–width method)
• Tangent method
• Ellipse fitting
• Circle fitting
Users can select the most appropriate method depending on surface roughness, droplet shape, or wettability range.
Time-Dependent Contact Angle Measurement
• Measures contact angle as a function of time
• Enables evaluation of wetting kinetics, spreading, absorption, and surface aging
• Particularly useful for porous materials, coatings, membranes, and treated polymers
• Enables evaluation of wetting kinetics, spreading, absorption, and surface aging
• Particularly useful for porous materials, coatings, membranes, and treated polymers
Surface Free Energy Analysis
• Automatic calculation of surface free energy of solids
• Supported theoretical models include: Owens–Wendt, Kaelble-Uy, Wu, Acid-base, Zisman plot
This allows quantitative assessment of surface polarity, adhesion behavior, and coating performance.
• Supported theoretical models include: Owens–Wendt, Kaelble-Uy, Wu, Acid-base, Zisman plot
This allows quantitative assessment of surface polarity, adhesion behavior, and coating performance.
Pendant Drop Capability (Optional)
• Enables surface and interfacial tension measurement using the pendant drop method
• Young–Laplace based analysis
• Allows combined solid–liquid and liquid–liquid interface evaluation in one system
• Young–Laplace based analysis
• Allows combined solid–liquid and liquid–liquid interface evaluation in one system
DMo-902 – Fully Automatic Contact Angle System
• Highest level of automation: first-measurement positioning, droplet generation, deposition control, droplet analysis, and stage movement are all automatic
• Best for high-throughput advance R&D, method development and systematic surface mapping over a full 150×150 mm area
• Supports the widest range of optional accessories
• Best for high-throughput advance R&D, method development and systematic surface mapping over a full 150×150 mm area
• Supports the widest range of optional accessories
DMo-702 – Advanced Automated Model
• Excellent balance of analytical capability and system complexity
• Supports automatic droplet generation and deposition, analysis, and stage movement in the X direction
• Supports dynamic and time-dependent measurements
• Great balance of automation and manual control for routine research labs
• Supports automatic droplet generation and deposition, analysis, and stage movement in the X direction
• Supports dynamic and time-dependent measurements
• Great balance of automation and manual control for routine research labs
DMo-602 – Semi-Automatic Model
• Strong performance for routine and advanced contact angle analysis
• Droplet generation and deposition can be controlled, with automatic analysis
• Useful for labs that need repeatable measurements for both research and quality control but don’t require full automation
• Expandable with optional analysis modules
• Droplet generation and deposition can be controlled, with automatic analysis
• Useful for labs that need repeatable measurements for both research and quality control but don’t require full automation
• Expandable with optional analysis modules
DMo-502 – Entry Modular Model
• Core contact angle and surface free energy functionality
• Compact, stable design with professional-grade optics
• Automatic dispenser generates droplets, but other steps (e.g., positioning) may require manual setup
• A cost-effective introduction to advanced contact angle measurement with expandability
• Compact, stable design with professional-grade optics
• Automatic dispenser generates droplets, but other steps (e.g., positioning) may require manual setup
• A cost-effective introduction to advanced contact angle measurement with expandability