Immersible ultrasonic transducer BBUA-C

Overview

The BBUA-C series provides 35 kHz, 40 kHz, 55 kHz, 63 kHz and 80 kHz ultrasonic transducers for underwater communication links, positioning beacons, underwater robot communication and acoustic networks. All configurations are rated for pressure up to 10 kgf (1 MPa) and carry IP68 protection. Electrical and environmental parameters differ by frequency and must be selected as one complete row.

Electrical and environmental configurations

• 35 kHz ±5% — Minimum impedance: 500 Ω ±20%; Capacitance: 6,000 pF ±20% at 1 kHz; Operating temperature: -40 to +80 °C
• 40 kHz ±5% — Minimum impedance: 750 Ω ±20%; Capacitance: 3,800 pF ±20% at 1 kHz; Operating temperature: -40 to +80 °C
• 55 kHz ±5% — Minimum impedance: 40 Ω ±20%; Capacitance: 15,000 pF ±20% at 1 kHz; Operating temperature: -10 to +40 °C
• 63 kHz ±5% — Minimum impedance: 20 Ω ±20%; Capacitance: 24,000 pF ±20% at 1 kHz; Operating temperature: -10 to +40 °C
• 80 kHz ±5% — Minimum impedance: 30 Ω ±20%; Capacitance: 24,000 pF ±20% at 1 kHz; Operating temperature: -10 to +40 °C

Peak-voltage configurations

• 35 kHz ±5% — Peak voltage: below 1,000 Vpp
• 40 kHz ±5% — Peak voltage: below 450 Vpp
• 55 kHz ±5% — Peak voltage: below 225 Vpp
• 80 kHz ±5% — Peak voltage: below 260 Vpp

Acoustic-field configurations

• 35 kHz ±5% — Half-power angle (-3 dB): 38.9° ±10%
• 40 kHz ±5% — Half-power angle (-3 dB): 72.6° ±10%

• 55 kHz ±5% — Acoustic field: horizontally omnidirectional; Reference range: 20 m
• 63 kHz ±5% — Acoustic field: horizontally omnidirectional; Reference range: 30 m
• 80 kHz ±5% — Acoustic field: horizontally omnidirectional; Reference range: 30 m

Applications

• Underwater communication links
• Underwater positioning beacons
• Underwater robot communication
• Underwater acoustic networks

Technical specifications

• Series name: BBUA-C
• Available center frequencies: 35 kHz ±5%, 40 kHz ±5%, 55 kHz ±5%, 63 kHz ±5%, 80 kHz ±5%
• Pressure rating: up to 10 kgf (1 MPa)
• Ingress protection: IP68
• Electrical parameters by frequency listed in the Electrical and environmental configurations
• Peak voltage limits by frequency listed in the Peak-voltage configurations
• Acoustic field and beamwidth details listed in the Acoustic-field configurations
• Intended uses: communication links, positioning beacons, robot communication, acoustic networks