Benthowave - Model BII-7020 Series -Line Array Hydrophone

BII-7021 and BII-7021Q are discrete linear array to support Digital or FFT Beamforming, and can be used as broadside and endfire array. The narrow beamwidth along the length provide direction information of the sound sources and reject the unwanted noises coming from other directions; the omnidirectional response cross the length covers large area to search. Two or four line arrays can be used to set up "T" or "+" type cross array functioning as a Target Angle Estimation System with Mills Cross techniques which provides accurate bearing information of sound sources.
BII-7022 averages sound pressures along the Line Array, and support built-in amplitude shading/weighting.

BII-7023 integrates the sound pressures along its surface and support amplitude shading/weighting. The integration of the sound pressures along a line can be used in measurement of acoustic radiation field, trouble-shooting, maintenance and development of transducers and arrays, and researches in theoretical acoustics such as boundary element acoustics, Green`s function, Helmholtz integral and Rayleigh`s integral, etc...
The body of BII-7020 series is streamlined hemispherical domes which minimize the drag forces and the hydrodynamic noise caused by the hydrophone in motion or the flow past the hydrophone.

For the array greater than 30kHz, please refer to BII-7210 Phased Array Hydrophone and BII-7190 Directional Hydrophone.

For the array less than 15kHz, please refer to BII-7010 hydrophone or BII-7140 Hydrophone to set up discrete array.

• Towed Array, Sonobuoy, PAM System
• Tracking of Acoustic Tags
• Direction-finding Sonar System
• Target Angle Estimation Systems
• Locating Marker/Pinger/Beacon/Transponder
• Near-field Calibration and Measurement
• Hydrophone Calibration
• Trouble-shooting, Maintenance and Development of Transducers and Arrays
• Acoustic Pipeline Leak Detection
• Directional Communication