Immersible ultrasonic transducer BBDM-D46K

high-temperatureruggedmeasurement

Overview
The BBDM-D46K is an underwater ultrasonic transducer designed for ranging and depth measurement. It operates at a center frequency of 46 kHz ±5% and is recommended for targets at ranges from 1 to 1000 m. The half-power beam angle is 19.6° ±10% at -3 dB. The unit is built for submerged operation with IP68 protection.

Technical specifications (table)

• Model: BBDM-D46K
• Center frequency: 46 kHz ±5%
• Recommended range: 1 to 1000 m
• Half-power beam angle at -3 dB: 19.6° ±10%
• Minimum impedance: 300 Ω ±20%
• Capacitance: 4,500 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <1500 Vpp
• Operating temperature: -40 to +80°C
• Pressure rating: ≤10 kgf or 1 MPa
• Housing material: PI and hard-anodized aluminum alloy
• Protection rating: IP68

Applications

• Underwater ranging and depth measurement
• Underwater robot obstacle avoidance
• Tank and water-body distance measurement
• Underwater target detection

Selection and integration
Selection must consider the acoustic medium and temperature, required acoustic path and operating range, target size and surface condition, available installation space and mounting orientation, operating pressure and ingress protection, and compatibility with drive and receive electronics. Proper matching of impedance and drive voltage is necessary for reliable operation.

Caractéristiques / spécifications techniques

• Model: BBDM-D46K
• Center frequency: 46 kHz ±5%
• Recommended range: 1 to 1000 m
• Half-power beam angle at -3 dB: 19.6° ±10%
• Minimum impedance: 300 Ω ±20%
• Capacitance: 4,500 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <1500 Vpp
• Operating temperature: -40 to +80°C
• Pressure rating: ≤10 kgf or 1 MPa
• Housing material: PI and hard-anodized aluminum alloy
• Protection rating: IP68