BENTHOWAVE INSTRUMENT INC. Acoustic Transducer & System
Acoustic Elements for Arrays, Streamers and Beacons.
BII7140 Series Acoustic Elements for Arrays, Streamers, Beacons and Positioning.
The acoustic elements feature small size, low cost and easy
integration, and are ready to be assembled in discrete arrays such
as linear (broadside, end-fire, Mills Cross), planar and 3-D arrays
to implement different acoustic applications. Depending on the
operating frequency, these elements can be treated as Points, Lines
or Rectangle Aperture in array signal processing. Beam steering,
array focusing, bearing measurement, side-lobe suppression, and
user-defined beam pattern (broad or narrow) can be achieved by complex
weighting (Digital or FFT Beamforming) technique. Differential
output and shielded twisted pair cable provide great EMI noise
rejection over long cable. Multiple elements can be combined in
series or parallel to make up an array distributing hundreds meters
in field.
If your project needs very low acceleration sensitivity, Please refer
to
BII7090 about acoustic
elements with acceleration cancellation.
| Typical Applications | |
| Oil-filled Streamer Element/Towed Array/Seabed Array/Planar Array | Acoustic Beacons: Pingers, Tags, Remote Tracking; Acoustic Positioning. |
| Monitoring Seismic Sources/Airgun/Watergun | Array Focusing & Beam Steering, Vector Hydrophone Element |
| Passive Acoustic Monitoring System (PAM System), Sonobuoy | Marine Seismic Detector/Exploration/Borehole Seismic |
| Related Products | |
| BII7020 Line Array Hydrophone: 0.1Hz to 90kHz | BII7010 Low Noise Broadband Hydrophone: 0.1Hz to 500kHz |
Specification
| Aperture Size (mm) | Document | Usable Frequency | Signal Type | Operating Depth | Beam Pattern |
| Φ4x4, Φ6x5, Φ9.5x8, 6.5x6.5. | Datasheet | 1 Hz to 550 kHz | Differential, Single-Ended. | 300 to 950m | Omnidirectional, Toroidal, Conical |