| Scientific research-type echo detectors that meet the classification survey of fish, submerged vegetation and bottoms | |||||||||
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Main functions | |||||||||
Fish and other aquatic animals surveys ComeQuantity and density ComeBehavior and spatial distribution ComeIndividual size and biomass calculation ComePopulation structure calculation |
Fish echo signal |
GIS mapping (fish distribution) | |||||||
Survey on submerged vegetation ComePercentage or total coverage ComeSpatial distribution ComeCrown cover height ComeBiomass calculation |
Submerged plant echo signal |
GIS mapping (plant distribution) | |||||||
Research on water depth measurement and bottom quality classification ComeWater depth ComeSubstrate type (rock, sand, sludge, etc.) ComeWater depth drawing ComeSediment thickness indication |
Substrate echo signal |
GIS mapping (substrate classification and distribution) | |||||||
Application areas | Technical parameters | ||||||||
ComeFishery Resource Survey, Fish Behavior and Ecology Research ComeOther aquatic animals surveys ComeResearch on spatiotemporal distribution, biomass, coverage, etc. in submerged vegetation ComeWater depth measurement and underwater topography research ComeResearch and investigation on water base material classification Main features ComeMulti-threaded (channel) technology—one host can operate up to 10 transducers ComeConfigure differential GPS ComeReal-time display of water depth and navigation speed ComeConfigurable orientation sensor ComeBioSonics Visual Habitat, a unique submerged vegetation and substrate classification software on the market ComeCompatible with third-party acoustic data analysis software such as EchoView, Sonar 5, QTC Impact ComeAutomatically download maps from Google, Bing, Open Street and other map servers | ComeBeam type: split beam or single beam ComeTransducer frequency: 38, 70, 120, 200, 420 and 1000kHz ComeSignal type: digital signal ComeReal-time display of water depth and speed through NMEA0183 protocol ComeEcho detection limit: -140dB ComeDynamic range: greater than 160dB ComePulse frequency: 0.01-30 times/second adjustable ComePulse width: adjustable 0.1-1.0 milliseconds ComeDetection distance: 0-2000 meters ComeCable length: standard 7.5 meters, (optional 7.5-275 meters) ComePower consumption: 30W ComeAdaptive power supply: 11-14V DC or 90-264V AC Size and weight ComeHost: 49×39×19cm, 9kg ComeTransducer: 200, 400, 1000kHz: 18cm in diameter, 17cm in height, 4kindivual 38, 70, 120kHz: diameter 26cm, height 22cm, 14-17kg | ||||||||
| Transducer configuration principles |  | ||||||||
ComeHigh frequencies (such as 420kHz) are more suitable for small "targets" and close-range detection ComeLow frequencies (such as 38kHz & 70kHz) are more suitable for large "targets", marine environments and long-distance detection. ComeThe transducer of the split beam is used to count and track individual targets, and to determine the precise target acoustic intensity for measuring target size ComeBoth single-beam and split beam transducers are suitable for water depth measurement, base classification, and collection of data on fish and zooplankton clustering and submerged plants. | |||||||||
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| System configuration | |||||||||
The configuration of a complete DT-X echo detection system mainly includes the following components: | |||||||||
Required configuration | |||||||||
Host System |
Digital transducer |
Digital cable |
Calibration ball |
Data processing software | |||||
Optional configuration | |||||||||
"Three Defense" Computer |
GPS sensor |
Transducer fixing frame |
Transducer drag body |
External battery | |||||
| Origin:BioSonics in the United States | |||||||||
