Contact Angle Meter: DMo-WA Series
Wide-Area, Multi-Point Wettability Analysis with Advanced Automation
The DMo-WA Series Contact Angle Meters are advanced surface analysis systems specifically designed for wide-area, multi-point contact angle measurement and wettability mapping. Unlike conventional single-point contact angle meters, the DMo-WA series enables systematic evaluation of surface uniformity across large substrates, making it ideal for process validation, surface treatment optimization, and quality assurance.
By combining automated droplet dispensing, motorized stage control, high-speed imaging, and FAMAS image analysis software, the DMo-WA series delivers highly reproducible, operator-independent wettability data over large sample areas.
Key Features:
Wide-Area, Multi-Point Measurement Capability
• Designed for systematic contact angle measurement over large surfaces
• Supports programmable multi-point measurement patterns
• Enables statistical evaluation of surface uniformity and consistency
This capability is essential for applications where local variations in wettability directly impact product performance.
• Supports programmable multi-point measurement patterns
• Enables statistical evaluation of surface uniformity and consistency
This capability is essential for applications where local variations in wettability directly impact product performance.
High-Level Automation for Reproducibility
• Automatic droplet generation and deposition
• Automated image capture and contact angle calculation
• Motorized stage movement for precise positioning across the sample
Automation minimizes operator influence and ensures consistent measurement conditions across all points.
• Automated image capture and contact angle calculation
• Motorized stage movement for precise positioning across the sample
Automation minimizes operator influence and ensures consistent measurement conditions across all points.
High-Speed Optical Imaging
• High-speed CMOS camera captures clear droplet profiles
• Enables both static and time-dependent contact angle measurement
• Supports observation of early wetting behavior immediately after droplet placement
This allows detailed evaluation of surface treatments and coating processes.
• Enables both static and time-dependent contact angle measurement
• Supports observation of early wetting behavior immediately after droplet placement
This allows detailed evaluation of surface treatments and coating processes.
Advanced Image Analysis with FAMAS Software
• Automatic droplet contour recognition
• Multiple contact angle calculation methods: θ/2 (height–width), Tangent, Ellipse fitting, Circle fitting
• Automatic data logging, CSV export, and report generation
FAMAS software ensures objective, repeatable analysis across large datasets.
• Multiple contact angle calculation methods: θ/2 (height–width), Tangent, Ellipse fitting, Circle fitting
• Automatic data logging, CSV export, and report generation
FAMAS software ensures objective, repeatable analysis across large datasets.
Surface Free Energy Evaluation
• Automatic calculation of surface free energy of solids
• Supported theoretical models include: Owens–Wendt, Kaelble-Uy, Wu, Acid–base, Zisman plot
This enables quantitative comparison of surface polarity and adhesion behavior across treated and untreated areas.
• Supported theoretical models include: Owens–Wendt, Kaelble-Uy, Wu, Acid–base, Zisman plot
This enables quantitative comparison of surface polarity and adhesion behavior across treated and untreated areas.
Expandable Measurement Platform
The instruments offer optional modules for:
• Dynamic contact angle (advancing/receding)
• Sliding angle measurement (with tilting stage)
• Surface and interfacial tension (pendant drop method)
• Temperature-controlled stages
The modular design allows the DMo-WA system to evolve with changing research or production needs.
• Dynamic contact angle (advancing/receding)
• Sliding angle measurement (with tilting stage)
• Surface and interfacial tension (pendant drop method)
• Temperature-controlled stages
The modular design allows the DMo-WA system to evolve with changing research or production needs.