BENTHOWAVE INSTRUMENT INC. Acoustic Transducer & System
Communication & Miniature Transducer: Toroidal Beam
BII7510 Series Communication and Miniature Transducer: Broadband, Low to Medium Qm
Low-Qm BII7510 series are broadband high power
communication transducers with toroidal directivity pattern for uses
in voice and message channels underwater especially in the
horizontal plane, which is designed for analog and digital
communication underwater. Sounds with carrier frequencies 3 to 360
kHz and sound levels up to 190 dB μPa support long range and short
range communication underwater. The information can be exchanged
over 10km away with low frequency sounds.
Medium-Qm BII7510 series are miniature transducers with toroidal
directivity pattern for uses in underwater communication especially
in the horizontal plane, and in material study and medical research
as ultrasonic sources and sensors. Frequencies of 50 to 400 kHz and
sound levels of 180 to 190 dB μPa support short to long range sound
propagation in water, liquids, rubber-like material, and solids.
Their miniature sizes make them be suitable to be embedded in
materials.
Low Frequency Low Noise Receiver LNR is an add-on
built-in programmable-sensitivity hydrophone of 1Hz to 60kHz, which
is optimized to possess self noise levels below sea-state zero with
omnidirectional response in low frequency range and toroidal
response in high frequency range. Its streamlined hemispherical dome
minimizes drag force and hydrodynamic noise.
| Modulations | |
| Pulsed FSK, Chirp-type FSK, Frequency Hopping | DSSS |
| PSK | CDMA/DSSS |
| Typical Applications | |
| Remote Control and Telemetry Artificial Acoustic Target, Echo-Repeater Acoustic Deterrent to Marine Animals Playback Marine Animal Voices/Calls/Whistles/Songs/Clicks Material Study and Medical Research |
Underwater Acoustic Network, Acoustic Elements for
Arrays Diver Communication, Underwater Telephone Pinger/Tag/Locator/Transponder/Beacon/Acoustic Release Marine Animal Behavior Research, Bioacoustic Stimuli Hydrophones, AE Sensors, Ultrasonic Sources |
| Related Products | |
| BII5000 Power Amplifier | BII6010: Impedance Matching |
| BII7500 High Power Piston Transducer | BII7520 Omnidirectional Transducer: 2 to 300 kHz |
| BII7590 Free Flooded Ring Transducer: Broadband, Deep Ocean | BII7620 Directional Low Frequency Transducer |
| Acoustic Transducers and Measurement Systems: Installation/Mounting, Ordering, Wiring, Array & Aperture Design and much more. |
| Specification |
| Transducer | fs kHz | Qm | TVR at fs dB
µPa/V@1m |
FFVS dB V/µPa |
Size ΦDxH |
| BII7510 Series | 60 to 400 | 2 to 6.5 | 130 to 138 | -188 to -208 | Small & Miniature |
| BII7511 | 40 (35 to 55) | 1.5 | 138 ±2 or 153 ±2 | -200.0 ±3 or -171/-141 | Φ28.5x60mm |
| BII7511Q | 30 | 2.5 | 142.0 | -194.2 | Φ35x60mm |
| BII7512 | 20 | 2.0 | 139.0 to 142.0 | -195.0 | Φ54x76.2mm |
| BII7513 | 14 | 3.5 | 138.0 | -191.5 | Φ89x95mm |
| BII7514 | 8 | 1.2 | 140.0 | -188.0 | Φ114x95mm |
| BII7515 | 6 | 3 | 141.5 | -187.0 | Φ141x115mm |
| BII7516 | 3 to 4 | 3 | 139.0 | -185.0 | Φ168x115mm |