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GAPS
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User Guide
2.2 Specifications of GAPS Acoustic Antenna
2.2.1
G
ENERAL
C
HARACTERISTICS
2.2.1.1
Positioning
Coverage
200° below the acoustic array
Acoustic Level
191 +/-3 dB ref. 1 µPa @ 1 m
Operating frequency
22 to 30 kHz MFSK chirp modulation technique
Heading / Roll / Pitch accuracy
0.01°
Receiving voltage sensitivity
-206 dB re 1 V / µPa (± 3 dB) 56 µV / Pa (nominal)
Horizontal directivity Omnidirectional
± 2 dB at 100 kHz (Typical)
Vertical directivity
270° ± 2 dB at 50 kHz (Typical)
2.2.1.2
Operating / Environment
Power supply / Consumption
24 to 36 VDC / 35 W (45 W at starting up)
100-240 VAC
Operating temperature
-5 °C to 35 °C
Storage temperature
-40 °C to + 70 °C
Highest humidity
95% at 40°C
Vibration range
from 1 to 55 Hz at 1 mm / 10 m/s2
Shock acceleration
15 m/s2 for 15 ms, ½ sinus
2.2.2
M
ECHANICAL
S
PECIFICATIONS
Housing
Carbon
Weight in air / water
16 kg / -7 kg
Housing diameter x H (mm)
296 x 638 (fits in DN350 gate valves)
Array depth-rating
Up to 25 m for nominal accuracy
Up to 100 m non destruction
Maximum sailing speed
12 knots
MU-GAPS-AN-005-H - November 2019
25
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