Profile Analysis Tensiometers
Advanced instruments for surface and interfacial characterization.
Bubble Pressure Tensiometer
BPA-2P
Dynamic surface tension. Anywhere.
The BPA-2P is a next-generation maximum bubble pressure tensiometer for precise dynamic surface tension analysis. With its integrated battery, touch display and stand-alone operation, it delivers laboratory-grade measurements wherever they are needed.
10 ms
Dynamic measurements
Stand-alone
Touch operation
Battery
Mobile operation
The BPA-2P platform
Modern dynamic surface tension analysis.
The BPA-2P combines the proven maximum bubble pressure method with modern embedded hardware, intuitive touch operation and mobile stand-alone functionality. Designed for laboratory and industrial environments, it provides reliable dynamic surface tension measurements with exceptional ease of use.
Its compact mechanics, integrated battery and network connectivity enable flexible measurements both inside and outside the laboratory while maintaining high precision and long-term reliability.
Capabilities
One platform. Endless possibilities.
Discover the measurement capabilities and integrated technologies of the PAT-1P.
Measure dynamic surface tension over a broad range of surface ages using the maximum bubble pressure method. The BPA-2P precisely characterizes fast surfactant adsorption processes in laboratory and industrial samples.
Directly determine dead time and bubble lifetime to accurately relate measured surface tension to the physical age of the newly formed liquid interface.
Automatically determine hydrostatic pressure and correct hydrodynamic and viscosity effects to obtain reliable dynamic surface tension data across different liquid systems.
Operate the BPA-2P independently through its integrated 7-inch color touch display. The built-in battery enables flexible measurements without a permanent workstation.
Access measurement data and control the instrument remotely through the local network. Embedded FTP and VNC services support data sharing, remote operation and software updates.
Continuously monitor the sample temperature throughout the experiment to support reproducible measurements under controlled conditions.
Performance
Engineered for reproducible results.
The PAT-2S combines high-resolution imaging, precise mechanics and advanced analysis software to deliver reliable measurement data for demanding interface research.
10–150mN/m
Surface tension range
Dynamic surface and interfacial tension measurements across a wide range of liquid systems.
250 µs
Sampling rate
High-speed pressure acquisition for fast dynamic surface tension analysis.
10 ms
Minimum surface age
Characterize rapid adsorption processes from 10 milliseconds up to 30 seconds.
1 ml
Minimum sample volume
Reliable measurements with very small sample quantities.
Values may depend on configuration, measurement mode and optional modules.
Measurement principle
Capturing interfaces in motion.
The BPA-2P determines dynamic surface tension using the maximum bubble pressure method. By generating bubbles at precisely controlled frequencies and measuring the maximum pressure during bubble formation, the instrument accurately characterizes newly created liquid interfaces over a wide range of surface ages. This enables detailed investigation of surfactant adsorption, wetting dynamics and fast interfacial processes.
Measurement method
Maximum Bubble Pressure
Surface age
10 ms – 30 s
Applications
Dynamic interfaces
Accessories
Extend your BPA-2P.
Configure the BPA-2P with specialized accessories for different liquids, temperature conditions and experimental requirements.
Accessory
Standard Capillaries
Select standard capillaries of different diameters to optimize measurements across a wide range of dynamic surface tension applications.
Learn more
BPA-2P Configurator
Configure your BPA-2P.
Configure the BPA-2P for your laboratory by selecting the appropriate capillaries, measurement accessories, connectivity options and software features. Create a tailored system for your dynamic surface tension applications.
Measurement modes
Capillaries & accessories
Network & stand-alone operation
Battery
Mobile operation
Power supply 24 VDC, 100-250 AC, 50-60 Hz
Power
Modular system
Select modules, options and accessories individually.
Applications
Optimized for dynamic liquid interfaces.
The BPA-2P supports dynamic surface tension analysis across industrial process control, formulation development and research laboratories where fast interfacial phenomena determine product performance.
Scientific publications
Thousands
Publications and scientific references related to interface characterization.
Established in dynamic interface science.
Explore peer-reviewed research related to maximum bubble pressure tensiometry, dynamic surface tension, surfactant adsorption, bubble lifetime and fast interfacial processes.
Verified SINTERFACE instrument use will be clearly distinguished from recommended scientific literature.
Technical information
Engineered for dynamic surface tension analysis.
Explore the measurement capabilities, operating modes and technical specifications of the BPA-2P.
Dynamic surface tension
Interfacial tension
Maximum bubble pressure method
Bubble lifetime and dead time analysis
Hydrostatic pressure determination
Hydrodynamic correction
Viscosity correction
Continuous temperature monitoring
Surface tension
- Measurement range
- 10–150 mN/m
- Resolution
- 0.01 mN/m
- Accuracy
- Better than 0.5%
Dynamic measurements
- Sampling rate
- 250 µs
- Surface age
- 10 ms – 30 s
- Minimum sample volume
- 1 ml
Standard mode
Constant time mode
Fast scan mode
Increasing flow mode
Density estimation
Up to 180 measurement points per scan
Unlimited constant mode measurements
- Display
- 7-inch TFT color touch display
- Resolution
- 800 × 480 px
- Ethernet
- 100 Mb
- USB
- 2 × USB
- WiFi
- Optional
Embedded Linux operating system
Stand-alone operation
FTP server
VNC remote control
Remote access via Ethernet
Automatic Internet software updates
USB and SD card data storage
- Dimensions
- 110 × 205 × 75 mm
- Weight
- 1 kg
- Operating temperature
- 10–50 °C
- Measurement temperature
- 0–100 °C
- Power supply
- 12 VDC
- Power consumption
- <15 W
Capillaries of different diameters
Thermostatic jacket
External mouse and keyboard support
USB memory storage
SD card storage
Specifications may vary depending on configuration, software version and optional modules.
Downloads
Documentation at a glance.
Access product information, technical documentation and software resources for the BPA-2P.
Additional manuals and software downloads are available through the SINTERFACE customer portal.
Visit download centerBPA-2P
Ready to measure dynamic surface tension?
Discuss your application with our specialists and configure the ideal BPA-2P system for dynamic surface tension analysis, industrial process monitoring and research.
Application consultationConfiguration supportGlobal technical assistance