Monitoring acoustic transducer BBUA-S

for general purposescommunicationstainless steel-housed

Overview
The BBUA-S series provides low-frequency underwater acoustic source transducers (470 Hz, 900 Hz, 2 kHz, 8 kHz and 12 kHz) designed for long-range signal transmission, fish deterrence/behavioural control and hydroacoustic experiments. Units operate from -40 to +80 °C, deliver a 180° acoustic field and feature IP68 protection. Electrical, range, pressure and housing parameters vary by frequency and must be selected as a complete configuration.

Frequency-specific configurations

• 470 Hz ±50 Hz — Minimum impedance: 4,400 Ω ±20%; Capacitance: 74,000 pF ±20% (at 1 kHz); Peak voltage limit: <150 Vpp; Reference range: 1,000 m; Pressure/weight rating: up to 5 kgf or 0.5 MPa; Housing: H62 + 304
• 900 Hz ±100 Hz — Minimum impedance: 1,300 Ω ±20%; Capacitance: 35,000 pF ±20% (at 1 kHz); Peak voltage limit: <300 Vpp; Reference range: 1,000 m; Pressure/weight rating: up to 5 kgf or 0.5 MPa; Housing: H62 + 304
• 2 kHz ±1 kHz — Minimum impedance: 1,100 Ω ±20%; Capacitance: 41,000 pF ±20% (at 1 kHz); Peak voltage limit: <450 Vpp; Reference range: 1,000 m; Pressure/weight rating: up to 10 kgf or 1 MPa; Housing: 304 stainless steel
• 8 kHz ±1 kHz — Minimum impedance: 3,500 Ω ±20%; Capacitance: 2,800 pF ±20% (at 1 kHz); Peak voltage limit: <450 Vpp; Reference range: 1,000 m; Pressure/weight rating: up to 10 kgf or 1 MPa; Housing: 304 stainless steel
• 12 kHz ±1 kHz — Minimum impedance: 2,200 Ω ±20%; Capacitance: 2,900 pF ±20% (at 1 kHz); Peak voltage limit: <450 Vpp; Reference range: 500 m; Pressure/weight rating: up to 10 kgf or 1 MPa; Housing: 304 stainless steel

Applications

• Underwater acoustic source systems
• Long-range underwater acoustic signal transmission
• Fish deterrence and behavioural control
• Hydroacoustic research and experiments

Technical specifications

• Series: BBUA-S
• Operating temperature: -40 to +80 °C
• Acoustic field: 180°
• Protection rating: IP68
• Available centre frequencies: 470 Hz, 900 Hz, 2 kHz, 8 kHz, 12 kHz
• Reference ranges: 1,000 m (470, 900, 2, 8 kHz); 500 m (12 kHz)
• Minimum impedance by frequency: 4,400 Ω ±20% (470 Hz); 1,300 Ω ±20% (900 Hz); 1,100 Ω ±20% (2 kHz); 3,500 Ω ±20% (8 kHz); 2,200 Ω ±20% (12 kHz)
• Capacitance by frequency (at 1 kHz): 74,000 pF ±20% (470 Hz); 35,000 pF ±20% (900 Hz); 41,000 pF ±20% (2 kHz); 2,800 pF ±20% (8 kHz); 2,900 pF ±20% (12 kHz)
• Peak voltage limits: <150 Vpp (470 Hz); <300 Vpp (900 Hz); <450 Vpp (2, 8, 12 kHz)
• Pressure/weight ratings: up to 5 kgf or 0.5 MPa (470 & 900 Hz); up to 10 kgf or 1 MPa (2, 8 & 12 kHz)
• Housing materials: H62 + 304 (470 & 900 Hz); 304 stainless steel (2, 8 & 12 kHz)
• Note: Electrical, range, pressure and housing parameters differ by frequency and must be selected as a complete configuration (one row)