Simrad SX90 - INSTALLATION REV C - Test Procedure; Finalizing the Procedure

Finaltestsandmeasurements
Testprocedure
Observethefollowingproceduretomakethesourcelevel
measurements.
1ConnectthehydrophoneandTXEnablepulsetothe
oscilloscopeasshowninthetestschematics.
2Ensurethatthedistancebetweenthetransducerandthe
hydrophoneisbetween5and20metersdependingonthe
sizeofyourvessel.
3Useaweighttokeepthehydrophoneinastablevertical
position.
4Lowerthehydrophoneandadjustthetiltonthesonarto
getmaximumvoltageontheoscilloscopeatatiltangleof
approximately0degrees.
5MeasurethetimedelayfromthenegativegoingTXEnable
pulsetothetransmitterpulseontheoscilloscope.
6EntertheresultintotheMeasurementsresultstable.
7Readthepeak-to-peakvalueofthetransmitterpulseU(p-p).
8EntertheresultintotheMeasurementsresultstable.
9OpentheHorizontalmenu.
10ClickthePingSectorbutton,andobservethatthePingSector
parameterdialogueappearsatthebottomofthemenueld.
11SelectSector.
12Readtheoscilloscopemeasurements,andusethemanual
trainingcontrolsontheOperatingPaneltoobtainmaximum
possiblehydrophonevoltage.
13Enterthebearingangle,tiltangle,depthandwater
temperatureintotheMeasurementsresultstable.
14MaketherequisitecalculationsintheMeasurementsresults
table.
15Enterthe20logRrandUHydrvaluesfromtheMeasurements
resultstableintotheSourceLevel(SL)table.
16FillintheMtotalfromtheTesthydrophonedatatableinto
theSourceLevel(SL)table.
17Performthesourcelevelcalculationsasdetailedinthetable,
andcomparetheresultwiththespecicationsforthesonar.
•SX90Sourcelevel,Omni:216±2dB//1µPaat26kHz
•SX90Sourcelevel,11degrees:222±2dB//1µPa
Finalizingtheprocedure
Thesourcelevelmeasurementshavenowbeencompleted.
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