Simrad SX90 - INSTALLATION REV C - Final Tests and Measurements; Source Level (SL) Measurements

Finaltestsandmeasurements
FINALTESTSANDMEASUREMENTS
Inordertoverifythatthesonarworksproperly,thefollowing
measurementsandtestsmustbecarriedout:
•Sourcelevelmeasurements
•Receivingvoltageresponsemeasurements
•Noise/speedcurve
Requiredequipment
Tocarryoutthesetestsandmeasurements,anoscilloscope,a
signalgeneratorandatesthydrophonemustbeavailable.
Topics
•Sourcelevel(SL)measurementsonpage141
•Receivingvoltageresponse(VR)measurementsonpage145
•Noise/speedcurvemeasurementsonpage147
Sourcelevel(SL)measurements
Thisprocedurecallsforatesthydrophone.Priortouse,llin
thetechnicalspecicationsandtheappropriateenvironmental
specicationsforthehydrophonetobeused.Usethetable
provided.Finally,youneedtohookupthetestequipment
accordingtotheschematicsprovided.
Table6Testhydrophonedata
HydrophonedataValueUnitExample
SerialnumberSerialno.
1823860
Dateofcalibrationmonth/year10/96
Calibratedattemperature°C18°C
SensitivityastransmitterSdB//1µPa/V
119,2
SensitivityasreceiverMdB//1µPa/V
–208,9
Attenuationextensioncable(0,7/10m)
dB–0,7
Mtotal=M+Mextension
dB//1µPa/V
–209,6
307531/C
141