Five low-frequency configurations for underwater sound transmission
The BBUA-S series provides 470 Hz, 900 Hz, 2 kHz, 8 kHz and 12 kHz underwater acoustic source transducers for long-range signal transmission, fish deterrence and behavioral control, and hydroacoustic experiments.
All configurations operate from -40 to +80 °C, provide a 180° acoustic field and carry IP68 protection. Electrical, range, pressure and housing parameters differ by frequency and must be selected as one complete row.
Frequency-specific configurations
| Center frequency | Minimum impedance | Capacitance | Peak voltage | Reference range | Pressure rating | Housing material |
|---|---|---|---|---|---|---|
| 470 Hz ±50 Hz | 4,400 Ω ±20% | 74,000 pF ±20% at 1 kHz | Below 150 Vpp | 1,000 m | Up to 5 kgf or 0.5 MPa | H62 + 304 |
| 900 Hz ±100 Hz | 1,300 Ω ±20% | 35,000 pF ±20% at 1 kHz | Below 300 Vpp | 1,000 m | Up to 5 kgf or 0.5 MPa | H62 + 304 |
| 2 kHz ±1 kHz | 1,100 Ω ±20% | 41,000 pF ±20% at 1 kHz | Below 450 Vpp | 1,000 m | Up to 10 kgf or 1 MPa | 304 stainless steel |
| 8 kHz ±1 kHz | 3,500 Ω ±20% | 2,800 pF ±20% at 1 kHz | Below 450 Vpp | 1,000 m | Up to 10 kgf or 1 MPa | 304 stainless steel |
| 12 kHz ±1 kHz | 2,200 Ω ±20% | 2,900 pF ±20% at 1 kHz | Below 450 Vpp | 500 m | Up to 10 kgf or 1 MPa | 304 stainless steel |
Applications
- Underwater acoustic source equipment
- Long-range underwater acoustic signal transmission
- Fish deterrence and behavioral control
- Hydroacoustic experiments