When precise measurement of gas‑liquid two-phase flows is critical — whether in chemical processing, energy research, nuclear cooling studies, or fluid mechanics research — the BubbleMaster Model 7961 delivers. This research-grade analyzer from Kanomax enables accurate, simultaneous measurements of void fraction, bubble size, and bubble velocity, providing unmatched insight into complex multiphase flows.
The Gold Standard in Two‑Phase Flow Measurement
The BubbleMaster uses wedge-shaped optical fiber sensors to detect changes in reflected light intensity as bubbles pass through the sensor tip — converting those changes into high-fidelity data on bubble behavior.
Unlike non-intrusive optical methods, BubbleMaster’s intrusive fiber-optic sensing allows measurement even when void fraction exceeds 1%, making it effective in denser, more complex flows where other instruments may fail.
With options for different sensor tip types — S‑TOP, T‑TOP, and F‑TOP — the system can be tailored to a wide range of research demands.
Advanced Capabilities: What BubbleMaster Measures
- Time‑averaged void fraction — quantify how much of the flow volume is occupied by gas versus liquid.
- Individual bubble detection, size, and velocity — every bubble passing the sensor is recorded; with T‑TOP or F‑TOP sensors, you get detailed data on bubble diameter and speed, along with statistical analyses (average, standard deviation) and histograms.
- Compatibility with non‑conductive fluids — BubbleMaster works in a wide variety of liquid media, increasing its usefulness across industries.
Because of its fiber‑optic, photoelectric detection method, the system can detect bubbles greater than 1.0 mm and handle fluid velocities up to 5 m/s, making it suitable for a wide range of two-phase flow experiments.
Intelligent Data Acquisition & Analysis
BubbleMaster comes with software designed to maximize the value of every test. With high‑speed sampling (burst or continuous mode) and data acquisition capacity for up to 100,000 bubbles, researchers can capture large datasets for statistically robust analysis.
The software provides real-time monitoring, bubble signal waveforms, and detailed output data — including void fraction, bubble size and velocity distributions, tables, histograms, averages, and standard deviations.
Compact, Research‑Ready Hardware
The main BubbleMaster unit is designed for lab environments: compact enough for benchtop use, yet powerful enough for rigorous research. It measures 255 × 313 × 153 mm and weighs about 4.5 kg. Power requirements are standard — AC 90–240 V, 50/60 Hz — making it easy to integrate into most labs worldwide.
Multiple sensor tip options (S‑TOP, T‑TOP, F‑TOP) — including versions made for high heat or pressure — allow customization to match the fluid, pressure, and environmental conditions of your tests.
Ideal Applications for BubbleMaster 7961
- BubbleMaster’s design and capabilities make it invaluable in fields and scenarios such as:
- Chemical process research & optimization — Monitor void fraction and bubble behavior in bubble columns, mixers, reactors.
- Energy systems & nuclear reactor coolant flow analysis — Safely analyze gas–liquid flow behavior under demanding conditions.
- Cavitation and multiphase fluid research — Study bubble formation, collapse, and velocity/size distributions.
- Bioreactor monitoring and control — Evaluate gas exchange and bubble dynamics in biotech and fermentation systems.
- Pipeline multiphase flow diagnostics — Analyze flow regimes, gas–liquid ratios, and transient flow behavior in pipelines.
- Academic and industrial fluid mechanics experiments — Provide high-resolution data for modeling, simulation validation, and experimental research.
Elevate Your Two-Phase Flow Research with BubbleMaster
For engineers, fluid dynamics researchers, process development teams, and lab professionals who demand accuracy, real-time data, and deep insight into gas-liquid flows — the BubbleMaster Model 7961 is an indispensable tool. Its precise bubble-level detection, comprehensive data output, and robust hardware support make it the go-to choice for advanced multiphase flow analysis.
Unlock greater understanding of your fluid systems and achieve superior results — request a quote today to integrate the BubbleMaster into your lab.
More Information
Navigate the tab section below to see this product’s Features & Benefits, Specifications, Resources, and more.
- Measurable even at a higher void fraction of over 1 %
- Simultaneous measurement of bubble velocity and diameter
- Applicable to nonconductive fluid as well
- Option of plastic fibers or heat and pressure resistant types available (S-TOP / T-TOP)
- Fundamental researches of nuclear reactors
- Cavitation research, f. e., bubble sizes, velocity
- Void fraction control in bubble columns
- Efficiency validation of chemical process
- Gaseous diffusion in a solution, f. e., of bio reactors
| Main Unit Specifications | |
|---|---|
| Method | Photoelectric detection |
| Number of Channels | 4 Channels |
| Sensors | |
| Shape | Wedge-shaped |
| Measurable Bubble Size | > 1.0 mm |
| Applicable Velocity | < 5 m/s |
| Type of Sensors | S-TOP, T-TOP and F-TOP |
| Software | |
| Sampling System | Burst signal sampling |
| Sampling Mode | Trigger mode, Continuous sampling mode |
| Real Time Monitor | Photoelectric conversion output signal |
| Data Acquisition | Max. 100,000 (number of bubbles) |
| Analysis Data (S-TOP sensor) | Bubble signal waveform, Void fraction |
| Analysis Data (T-TOP / F-TOP sensor) | Bubble signal waveform, Void fraction, Bubble velocity, Bubble diameter, Average value, Standard deviation |
| Data Table | Bubble velocity, Bubble size |
| Histogram Chart | Bubble velocity, Bubble size |
| Supported Operating System | Windows 10 (64bit) |
| Power Supply | |
| Voltage | AC 90V ~ 240 V |
| Frequency | 50 Hz / 60 Hz |
| Appearance (main unit) | |
| Dimensions | 255 mm x 313 mm x 153 mm |
| Weight | approx. 4.5 kg |
| Output Data | S-TOP | T-TOP | F-TOP |
|---|---|---|---|
| Void Fraction | 〇 | 〇 | 〇 |
| Signal Waveform | 〇 | 〇 | 〇 |
| Bubble Velocity | X | 〇 | 〇 |
| Bubble Diameter | X | 〇 | 〇 |
| Bubble Entry Angle | X | X | 〇 |
| Average Value | X | 〇 | 〇 |
| Standard Deviation | X | 〇 | 〇 |
Data Sheet
Kanomax Bubblemaster 7961: Precise Leak Detection for Cleanrooms, Labs & Safety Systems
A new standard for leak detection in controlled environments. This research-grade analyzer enables accurate, simultaneous measurements of void fraction, bubble size, and bubble velocity.
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