The BubbleMaster measures gas-liquid two-phase flows with optical fiber sensors. It not only measures time-averaged void fraction, but also detects individual bubble size and velocity using reflected light intensity technology that changes when a bubble penetrates the tip of the wedge-shaped optical fiber.
Three types of quartz sensor tips are available: S-TOP, T-TOP and F-TOP. The intrusive approach of the BubbleMaster enables to measure even at a higher void fraction of over 1 %, which cannot be realized by a non-intrusive optical method.
The BubbleMaster software acquires samples from individual bubbles, which signal amplitude can be monitored on the software display. Analysis results, histogram of bubble velocity and diameter, void faction, averages and standard deviation can be obtained with the T-TOP and F-TOP sensor.
More Information
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- 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
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