Product Overview
BBUA-F50K200K is a dual-frequency underwater ultrasonic transducer for marine depth measurement and fish detection. The 50 kHz channel provides wider acoustic coverage, while the 200 kHz channel provides a narrower beam for more concentrated detection and improved target resolution.
The transducer features a seawater-resistant housing, a four-core shielded cable, a waterproof connector and an M22×1.5 threaded mounting interface. It is suitable for marine fish finders and dual-frequency underwater echo detection equipment.
Key Features
- Dual-frequency operation at 50 kHz and 200 kHz
- Beam angles of 48° and 12°
- Designed for marine depth measurement and fish detection
- IP68 protection
- ABS+PC housing
- Seawater-resistant construction
- Four-core shielded cable and waterproof connector
- M22×1.5 threaded mounting
Dual-Frequency Specifications
| Parameter | 50 kHz Channel | 200 kHz Channel |
|---|---|---|
| Resonant frequency | 50 kHz ±4% | 200 kHz ±4% |
| Combined sensitivity in water | >800 mV | >200 mV |
| Ring-down time in water | <1 ms | <0.5 ms |
| Beam angle (-3 dB) | 48° | 12° |
| Dynamic resistance | 70-110 Ω | 70-140 Ω |
General Specifications
| Parameter | Specification |
|---|---|
| Sensitivity test conditions | 20 Vp-p, 10 cycles, 100 mm test distance |
| Free capacitance | 3.3 nF ±20% |
| Maximum operating voltage | <500 V, pulsed, 2% duty cycle |
| Operating temperature | 0-50 °C |
| Ingress protection | IP68 |
| Housing material | ABS+PC |
| Corrosion resistance | Seawater resistant |
| Cable | 24 AWG four-core shielded cable |
| Signal interface | Waterproof connector |
| Mounting | M22×1.5 thread |
Typical Applications
- Marine depth measurement
- Fish detection
- Dual-frequency fish finders
- Underwater target echo detection