Odom ECHOSCAN, Manual

Page: 4 / 44

04/26/02 4
Revision 1.11
Specifications
Technical Specifications for the Odom ECHOSCAN Multibeam are as
follows:
•
Acoustic Frequency ………………... 200 kHz
• Number of Beams ………………….. 30 (physically beam formed)
•
Transducer Receive Elements …… PVDF
•
Projector Configuration ……………. PZT, 256 element, curvilinear array
•
Beam Pattern ……………………….. 3° at 3db Points (elliptical)
•
Coverage Sector ……………………. 90°
•
Acoustic Working Depth Range ...... 2-100 Meters (guaranteed), 2-200
Meters (theoretical)
•
Output Update Rate ……………….. Depth Dependent (13/sec at 20 m
range)
•
Output Resolution ……………….... 2.5 cm
•
Roll / Pitch Accuracy ………………. 0.05° (w/ optional ODMS-05 sensor)
•
Maximum Tilt Angle ……………….. 45° (self-calibrating w/ ODMS-05
sensor)
•
Sidelobe Suppression .................... > -30db Per Channel
•
Sensitivity................................…..... -197 db re 1 V/µ Pa
• Source Level ............................….... 225 db re 1 µPa at 1 Meter
• Preamp Noise ……………………… < 3db
•
Ref. Transducer Beam Width .…… 9° at 3db Points
•
Side Scan Imagery ………………… High Resolution, Analog
•
Side Scan Beam Pattern ................ 110° x 0.7°
•
Real-Time Data Presentation ……. 3D Perspective, profile “waterfall”
•
Max Survey Speed ………………… Between 12 & 17 Knots (hull and mount
design dependent)
• Power Requirement .................…... 110/230 VAC, 50/60 Hz Optional 24
VDC, 75W
•
Dimensions:
SPU ............................... 48.3 (w) x 26.7 (h) x 24.2 (d) cm.
Transducer ..................... 38.1 (w) x 26.1 (h) x 125.5 (d) cm.
•
Weight:
SPU ......................…....... 13.6 kg.
Transducer ..................... 40.8 kg. (positively buoyant in water)