
Profile Analysis Tensiometers
Advanced instruments for surface and interfacial characterization.
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Products, science, downloads and support
Search SINTERFACE
Products, science, downloads and support
Profile Analysis Tensiometer
A modular platform for advanced surface and interfacial characterization, combining precise image analysis, flexible experimental control and powerful measurement capabilities.

0.01 mN/m
Surface and interfacial tension resolution
1–2000 mN/m
Measurement range
Up to 100 Hz
High-frequency analysis with ODBA-1M
The PAT-1M platform
The PAT-1M combines precise optical analysis, controlled dosing and modular experimental capabilities in one flexible platform.
From surface and interfacial tension to contact angle measurements and advanced interfacial rheology, the system adapts to demanding research and industrial applications.
Capabilities
Explore the core measurement capabilities and modular possibilities of the PAT-1M.

Analyze liquid-gas and liquid-liquid interfaces through precise drop and bubble shape evaluation. The PAT-1M supports reliable static and dynamic measurements across a broad range of experimental conditions.
Characterize wettability, adhesion and energetic surface properties using static and dynamic contact angle methods with precise optical contour analysis.
Investigate dilational elasticity, interfacial viscosity and relaxation processes through controlled drop and bubble oscillations.
Extend the PAT-1M with specialized modules for high-frequency oscillations, capillary pressure measurements, direct drop and bubble interactions and fluid-dynamic experiments.
Control dosing, image acquisition, drop and bubble volume, oscillation parameters and data evaluation through one integrated software environment.
Performance
Every part of the PAT-1M platform is designed to transform complex interfacial behavior into clear, reproducible measurement data.
0.01mN/m
Precisely resolve subtle changes in surface and interfacial tension.
1–2000mN/m
Analyze a wide spectrum of liquid-gas and liquid-liquid interfaces.
1°–179°
Characterize wetting behavior across nearly the full angular range.
100Hz
Extend interfacial rheology measurements with the ODBA-1M module.
Values may depend on configuration, measurement mode and optional modules.
Measurement principle
The PAT-1M captures the contour of a drop or bubble with high optical precision. Advanced evaluation algorithms transform the recorded geometry into quantitative information about surface tension, interfacial tension, contact angle and dynamic interface behavior.

Optical acquisition
High-resolution imaging
Evaluation
Young-Laplace analysis
Output
Quantitative interface data
Go deeper
Modular platform
Configure the PAT-1M around your research. Specialized modules extend the platform from high-frequency interfacial rheology to pressure analysis, direct interface interactions and fluid-dynamic experiments.

Oscillating Drop and Bubble Analyzer
Extend the PAT-1M for high-frequency interfacial rheology measurements with controlled drop and bubble oscillations up to 100 Hz.
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Differential Pressure Analyzer
Measure capillary pressure and investigate interfaces in systems with very low density differences under precisely controlled conditions.
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Drop and Bubble Micromanipulation Module
Study direct interactions between drops, bubbles and interfaces with precise positioning and controlled approach experiments.
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Surface Oscillation Accessory
Perform controlled oscillation experiments for advanced analysis of dynamic and viscoelastic interface behavior.
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Coaxial Capillary System
Generate and control drops and bubbles through a coaxial capillary arrangement for specialized interface experiments.
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Contact Angle Measurement
The CA-1M combines high-resolution optical imaging with precision mechanics to determine static and dynamic contact angles on solid surfaces.
Learn morePAT-1M System Configurator
Combine the PAT-1M with compatible dosing configurations, measurement cells, specialized modules and accessories. The configurator guides you through the available options and prepares a complete quotation request.


ODBA-1M
High-frequency rheology

DPA-1M
Capillary pressure

DBMM-1M
Interface interactions

Dual Dosing
Extended dosing

CA-1M
Contact-Angle...
Modular system
Select modules, options and accessories individually.
Applications
The PAT-1M supports advanced interface characterization across research, development and quality control environments.
Scientific publications
Thousands
Publications and scientific references related to interface characterization.
Explore peer-reviewed research related to profile analysis tensiometry, interfacial rheology, wetting and advanced interface characterization.
Verified SINTERFACE instrument use will be clearly distinguished from recommended scientific literature.
Technical information
Explore measurement capabilities, system configurations and technical specifications of the PAT-1M platform.
Surface and interfacial tension
Static and dynamic contact angle
Surface free energy
Dilational elasticity and viscosity
Relaxation experiments
Drop and bubble oscillations
Capillary pressure measurements with DPA-1M
High-frequency rheology with ODBA-1M
Direct drop and bubble interactions with DBMM-1M
Online calculation of tension and contact angle
Automatic drop and bubble contour detection
Constant volume and constant area control
Controlled oscillation experiments
Fourier analysis of relaxation experiments
Integrated dosing and image acquisition
Surface free energy evaluation
Integrated automatic dosing system
Optional second dosing unit
Manual XYZ positioning system
Temperature-controlled measurement cell
High-speed camera integration
Compatible with specialized PAT modules
Specifications may vary depending on configuration, software version and optional modules.
Downloads
Access product information, technical documentation and supporting materials for the PAT-1M.
Overview of measurement capabilities, technical specifications and available configurations.
Explore the complete PAT-1M, compatible modules and measurement methods.
Additional manuals and software downloads are available through the SINTERFACE customer portal.
Visit download centerPAT-1M
Talk to our specialists about your application, measurement requirements and the right PAT-1M configuration for your research.