Monitoring acoustic transducer BBDM-D15K

measurementultrasonicomnidirectional

Overview
The BBDM-D15K is an underwater ultrasonic transducer for ranging and depth measurement. Its center frequency is 15 kHz ±5% and the recommended reference range is 1000 m. It is suitable for integration in underwater vehicles, sonar modules and fixed water-monitoring systems. IP68 protection and two acoustic/pressure configurations enable operation in shallow to moderate depths.

Applications

• Underwater ranging and depth measurement
• Obstacle avoidance for underwater robots
• Distance measurement in tanks and bodies of water
• Underwater target detection

Technical specifications

• Center frequency: 15 kHz ±5%
• Recommended reference range: 1000 m
• Minimum impedance: 600 Ω ±20%
• Capacitance: 11000 pF ±20% at 1 kHz
• Operating voltage: peak voltage less than 2000 Vpp
• Operating temperature: -40 to +80 °C
• Pressure rating: ≤10 kgf (1 MPa) for the 129° beam-angle version; ≤3 kgf (0.3 MPa) for the horizontally omnidirectional version
• Half-power beam angle: 129° ±10% at -3 dB (for beam-angle version)
• Protection rating: IP68

Acoustic-field and pressure configurations
Two acoustic configurations share the 15 kHz ±5% center frequency: a horizontally omnidirectional version rated to ≤3 kgf (0.3 MPa) and a 129° ±10% half-power beam-angle version rated to ≤10 kgf (1 MPa).