BENTHOWAVE INSTRUMENT INC. Acoustic Transducer & System
Line Array Hydrophone
A BII’s line (linear) array hydrophone averages sound pressures
along its length as a spatial filter, and utilize built-in amplitude
shading/weighting to reduce side-lobes. Its toroidal directivity
response makes it a great candidate to detect and search underwater
sound sources.
Split-aperture correlators based on line arrays implement target
angle estimation. 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. The
body has streamlined hemispherical domes which minimize drag forces
and hydrodynamic noises caused by the hydrophone in motion or the
flow past the hydrophone.
For applications of beam steering (Digital or FFT Beamforming) ,
please deploy multiple BII7021 arrays,
BII7010
hydrophones, or
BII7140
hydrophones to
configure discrete linear or planar arrays.
BII7020 Series Line (Linear) Array Hydrophone: Toroidal Directivity Response.
| Suggested Application | |
| Towed Array, Sonobuoy, PAM System. Direction-finding Sonar System, Target Angle Estimation Systems. | Tracking of Acoustic Tags, Locating Marker/Pinger/Beacon/Transponder. Acoustic Pipeline Leak Detection, Directional Communication. |
| Related Products | |
| BII7010 hydrophone Low Noise Broadband Hydrophone | BII7140 Hydrophone Acoustic Element for Array/Streamer/Beacon |
| Line Array Hydrophone: | BII7020 Series Line (Linear) Array Hydrophone |