Рюкзак Binshuai 8810
Transducer Array Element: 24 to kHz, No Side Lobes
BII Transducer Array Element: 24 to kHz, no side lobes.
Bbroadband array elements in BII series are designed for uses in line, plane, curved, conformal and parametric array, which meet the requirements of many underwater acoustic systems: vehicle/robot navigation, fishery sounding, bathymetric sounding, communication, marine animal study, physical oceanography research, seabed penetration/investigation etc
Besides, BII series transducer can also be used as a stand-alone transducer for transmitting and/or receiving sounds underwater.
Depending on the operating frequency (transmitting or receiving), these array elements can be treated as point, circular or rectangle aperture in array signal processing.
Array beamforming (weighting/shading and beam steering) and the configuration of array pattern/factor are much easier to be implemented in the arrays consisting of BIIs. Its aperture is rectangle to meet the interelement spacing limits (≤½λ or ≤λ).
With thru-hole/hull or bolt-fastening mounting, BIIs can be installed quickly and easily on apparatus of an array pattern.
Customized array can be achieved with multiple BIIs: parametric, acoustic sweeping (sector/2D/3D scanning), direction-finding, multi-beam, target angle estimation (Measurement of Bearing), dual-frequency, dual-beam, reduced beam width, wide beam width, side-lobe suppression, amplitude shading, higher radiation power, split beam Target-Angle-Estimation System, etc
In specific field conditions, sidelobes of transmitting transducers cause spurious echoes from uninterested directions, sidelobes of receiving transducers result in spurious sources' sounds from uninterested directions as well.
BIIs without any side lobe are a suitable candidate for use in these underwater systems in which sidelobes' effect is intolerable.
Besides being used in active Sonar, multiple BIIs can also be used in passive Sonar (listening sounds ONLY).
Optional mounting parts are available for installation on portable-mounting apparatus, submersibles, pipe, tank or vessel.
An impedance matching transformer is optional to provide correct impedance match to load requirements of power amplifiers.
A Transmit & Receive Switch is available to be integrated inside transducer for amplifying the received sounds and driving long cable.
|Bandwidth = fr/Q. Q: Quality Factor of the Transducer.|
|Array directivity function = (directivity function of array element) * (directivity function of array pattern).|
|Array Elements or Stand-alone Transducer|
General purpose Projector
General purpose hydrophone
Long Range Echo Sounding
Marine animal survey and assessment
|Navigation, Obstacle Avoidance|
Underwater Communication, Acoustic Positioning
Fishing Sounder, Survey Bioacoustics, Marine Animal Behavior Study
Bathymetry, Distance Gage, Altimeter, Sea Level Monitoring
|Broadband, Low Q, No Side Lobes|
Small Size to meet spacing limit of the array
Customized Beam Width and Frequency
| BII Transmitting & Receiving Switch|
BII Power Amplifier
BII Impedance Matching and Tuning Unit
| BII Signal Generation|
BII Underwater Acoustic Transmitter
BII Transmitting and Receiving System
|Receiving Sensitivity Loss over Extension Cable (dB) = 20*log[Ch/(Ch+Cc)];|
Ch - Receiving Transducer Capacitance; Cc - Extension Cable Capacitance.
Generally, Cc = 70 to pF/meter.
|Side Lobe:||No Side Lobe|
|Maximum Drive Voltage:||Vrms|
|Depth Rating:||Default: m|
|Deep Water:|| m.
To order Deep Water model, append DW to the part number.
|Impedance Matching:||Standalone use, NOT for array setup. Custom BII 4 to 16Ω, 50Ω, 60Ω, 75Ω, Ω,; Not Included. Order Separately, Append IM to part number.|
|T/R Switch:||Standalone use, NOT for array setup.
BII Transmitting & Receiving Switch; Not included, order separately, Append TR to part number.
|Mounting Options:|| 1.
Default: Free Hanging (FH)
Bolt Fastening Mounting (Stainless Steel): (BFMSS)
|Cable Length:||1. default: m|
|Cable:||1. Shielded Cable (SC)|
2. Wire/Cable Bundle (WCB): ONLY for Thru-hole Mount with BIIxTR and BIIxTRIM.
|Connector Options:||1. Default: Wire Leads (WL)|
2. Underwater Mateable Connector (UMC)
MIL Style ()
|Operating Temperature:||°C to +60°C|
|Storage Temperature:||°C to +60°C|
|How to Order:||Click How to Order.|
|Transducer Wiring:||Click Transducer Wiring for detailed wiring information.|
|Transmitting Array:||Array & Aperture Design|
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