Long-range underwater distance and depth measurement
The BBDM-D20K is a 20 kHz ultrasonic transducer for underwater ranging and depth measurement, with a reference range of 2000 m. Applications also include underwater robot obstacle avoidance, distance measurement in tanks and water bodies, and underwater target detection.
Horizontal omnidirectional acoustic field
The acoustic field is horizontally omnidirectional.
Electrical and operating data
| Center frequency | 20 kHz ±5% |
|---|---|
| Recommended range | 2000 m |
| Acoustic field | Horizontally omnidirectional |
| Minimum impedance | 50 Ω ±20% |
| Capacitance | 28000 pF ±20% at 1 kHz |
| Operating voltage | Peak voltage <500 Vpp |
| Operating temperature | -10 to +40°C |
| Pressure rating | ≤3 kgf or 0.3 MPa |
| Protection rating | IP68 |
Applications
- Underwater ranging and depth measurement
- Underwater robot obstacle avoidance
- Distance measurement in tanks and bodies of water
- Underwater target detection