Immersible ultrasonic transducer BBFM-V150K

high-frequency

Overview
The BBFM-V150K is an ultrasonic wind speed and direction transducer for 2D and 3D ultrasonic anemometers, meteorological monitoring, ventilation airflow measurement and industrial duct monitoring. Center frequency is 150 kHz ±5% and the reference acoustic path range is 0.12 to 2 m.

Acoustic path and beam
A 9° ±10% half-power beam angle at -3 dB supports acoustic-path planning between transducers. The required path geometry should be defined for the target 2D or 3D measurement arrangement.

Transducer arrangement and electronics
For multi-axis anemometers select transducer spacing and orientation within the 0.12 to 2 m reference range while accounting for the 9° beam angle, airflow path and mechanical clearances. Transmit and receive electronics should match the 240 Ω ±20% minimum impedance and 900 pF ±20% capacitance at 1 kHz. Applied peak voltage must remain <600 Vpp.

Environmental and mechanical integration
Operation is specified from -40 to +80°C, pressure rating up to 16 kgf or 1.6 MPa, and IP68 protection. The stated 75 g ±5% weight applies to the version with a 25 cm cable. Before integration confirm acoustic path, wind-vector geometry, mounting dimensions, surrounding structure, electronics, cable length and connection method.

Applications

• 2D and 3D ultrasonic anemometers
• Meteorological monitoring
• Ventilation airflow measurement
• Industrial duct monitoring

Verified technical specifications
Model: BBFM-V150K
Center frequency: 150 kHz ±5%
Recommended range: 0.12 to 2 m
Minimum impedance: 240 Ω ±20%
Capacitance: 900 pF ±20% at 1 kHz
Operating voltage: Peak voltage <600 Vpp
Operating temperature: -40 to +80°C
Pressure rating: ≤16 kgf or 1.6 MPa
Half-power beam angle: 9° ±10% at -3 dB
Housing material: Titanium alloy
Mounting: Refer to the dimensional drawing
Protection rating: IP68
Weight: 75 g ±5% with a 25 cm cable

Technical specifications

• Model: BBFM-V150K
• Center frequency: 150 kHz ±5%
• Recommended acoustic path range: 0.12 to 2 m
• Half-power beam angle: 9° ±10% at -3 dB
• Minimum impedance: 240 Ω ±20%
• Capacitance: 900 pF ±20% at 1 kHz
• Maximum applied peak voltage: <600 Vpp
• Operating temperature range: -40 to +80°C
• Pressure rating: ≤16 kgf / 1.6 MPa
• Housing material: Titanium alloy
• Protection rating: IP68
• Weight (with 25 cm cable): 75 g ±5%