Raymarine E Series Spezifikationen Seite 165

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 250
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 164
Iconanimated-shnderisoperating.
Iconstatic-theshndertransducerisconnectedbutnot
transmitting.
Icongreyed-out-noshndertransducerisconnected.
Howtheshnderworks
TheshnderapplicationusesaDigitalSounderModule(DSM)and
asuitablesonartransducer.TheDSMinterpretssignalsfromthe
transducerandbuildsupadetailedunderwaterview.
Thetransducerislocatedonthebottomoftheboat,itsendspulses
ofsoundwavesintothewaterandmeasuresthetimeittakesforthe
soundwavetotraveltothebottomandback.Thereturningechoes
areaffectedbybottomstructureandbyanyotherobjectsintheir
path,forexamplereefs,wrecks,shoalsorsh.
Colorsareusedonthedisplaytoindicatethestrengthofthereturns.
Youcanusethisinformationtodeterminethebottomstructure,
thesizeofshandotherobjectsinthewater,suchasdebrisor
airbubbles
Note:Sometransducersincludeadditionalsensorstomeasure
watertemperatureand/orspeed.
12.2Thesonarimage
Interpretingtheseabedusingsonar
Itisimportanttounderstandhowtocorrectlyinterprettheseabed
structurerepresentedintheshnderdisplay.
Theseabedusuallyproducesastrongecho.
Thefollowingimagesshowhowdifferentseabedconditionsare
representedinthesonardisplay:
D6855-2
A hard bottom (sand) produces a thin line
A soft bottom (mud or seaweed cover) produces a wide line.
The dark layer indicates a strong signal.
A rocky or uneven bottom or a wreck produces an irregular
image with peaks and troughs
Thedarklayersindicateagoodecho;thelighterareasindicate
weakerechoes.Thiscouldmeanthattheupperlayerissoftand
thereforeallowingsoundwavestopasstothemoresolidlayer
below.
Itisalsopossiblethatthesoundwavesaremakingtwocomplete
tripshittingtheseabed,bouncingoffthevessel,thenreecting
Usingtheshnder
165
Seitenansicht 164
1 2 ... 160 161 162 163 164 165 166 167 168 169 170 ... 249 250

Kommentare zu diesen Handbüchern

Keine Kommentare