Simrad SX90 - INSTALLATION REV C - Source Level Test Results

SimradSX90
Note
Donotremovethehydrophonefromthepositionusedforthe
sourcelevelmeasurements.Thisknownpositionshouldalso
beusedforthereceivingvoltageresponse(VR)measurements
inthenextsection.
Sourceleveltestresults
Thetwotablescreatedforthetestresultsareprovidedbelow.
Table7Measurementsresults
Measurements/calculations
ValueUnitExample
Measuredtimedelay
msec
5
r=1,5*t
meter
7,5
Distancefrom
hydrophone
totransducer
20logRdB17,5
U(p-p)
volt0,9
U(rms)=U(p-p)/2/√2
volt0,32
Hydrophone
voltagein
Omni
UHydr=20logU(rms)dB//1V
-9,9
U(p-p)
volt1,8
U(rms)=U(p-p)/2/√2
volt0,64
Hydrophone
voltagein11
degrees
UHydr=20logU(rms)dB//1V
-3,9
Bearing(°stb/port)°
-36
Tiltangle
°
0
Depthbelowkeel
meter
13
General
information
Watertemperature
°C
16
Table8Sourcelevel(SL)forOmniand11degrees
SL=UHydr-M+20logR
ValueUnitExample
UHydrophone
dB//1V
-9.9
Mtotal
dB//1V/µPa
-209.6
20logRdB17.5
Omni
SLOMNIdB//µPa
217.2
UHydrophone
dB//1V
-3.9
Mtotal
dB//1V/µPa
-209.6
20logRdB17.5
11degrees
SLOMNIdB//µPa
223.2
144
307531/C