Product Overview
The BBMU-BD-C is a 2.5 MHz ultrasonic acoustic component for detecting bubbles and liquid conditions in tubing. Its compact transmit-and-receive construction is designed for integration into air-bubble detectors, empty-tube detection modules, and OEM fluid-monitoring equipment.
The component provides ultrasonic transmission and reception and operates with external drive, receive, and threshold-detection electronics. Tube dimensions, mechanical mounting, and detection thresholds can be matched to the application.
Key Features
- 2.5 MHz center operating frequency
- Integrated transmit-and-receive acoustic structure
- Compact plastic housing for OEM integration
- Suitable for bubble, air, and liquid-state detection in tubing
- Low capacitance and stable impedance characteristics
- Configurable for the tube and electronic design
Technical Specifications
| Parameter | Specification |
|---|---|
| Product type | Ultrasonic acoustic component for bubble detection |
| Acoustic configuration | Integrated transmit and receive |
| Center operating frequency | 2.5 MHz |
| Frequency tolerance | ±5% or ±10%, depending on configuration |
| Bandwidth (-6 dB) | 10% |
| Electrostatic capacitance | 320 pF ±20% |
| Minimum parallel impedance | 100 Ω ±30% |
| Maximum input voltage | <20 V |
| Operating temperature | -20 to 70 °C |
| Storage temperature | -40 to 85 °C |
| Housing material | ABS plastic |
| Protection rating | IP65 configuration available |
Reference Test Conditions
| Item | Condition |
|---|---|
| Excitation | 6 Vp-p continuous wave |
| Reference acoustic gap | 2.6 mm |
| Test environment | 25 °C |
Detection performance depends on the tube material, outside diameter, wall thickness, liquid, mounting pressure, drive signal, receive gain, and detection threshold.
System Integration
The BBMU-BD-C requires the following external circuits or functional modules:
- 2.5 MHz ultrasonic drive circuit
- Receive amplification and filtering
- Liquid/air threshold detection
- Output logic and host-equipment interface
- Tube retention and acoustic-contact structure
Applications
- OEM ultrasonic air-bubble detectors
- Fluid monitoring in infusion and medical equipment
- Biotechnology and laboratory instruments
- Empty-tube and liquid-presence detection modules
- Dispensing and industrial-fluid-control equipment
Selection Information
For selection, specify the tube material, outside diameter, wall thickness, liquid, available installation space, drive signal, and required detection condition.