Introducing the Odom ES3 Odom Hydrographic … the Odom ES3 Multibeam Echo Sounder...

odomhydrographic.com

Odom Hydrographic Systems, Inc.

Rio de Janeiro, BrazilDecember 2007

Richard ByrdOdom Hydrographic Systems Inc.

Baton Rouge, LA U.S.A

Introducing the Odom ES3Multibeam Echo Sounder

Odom Hydrographic Systems, Inc.ES3Multibeam

Echo SounderOdom Hydrographic Systems, Inc.

Disruptive Innovation!Disruptive Innovation!The completely new hydrographic multibeam system from Odom

Berthing Area LNG Terminal Sheerness 17 Oct 07

Design Objectives

• Compact/Portable• Rugged• Easy to Install• Easy to use• Reliable• Repeatable • Affordable

ES3 System Components-Compact and Portable Design

The ES3 is supplied with the following:

Transducer Head (electronics and acoustic array),

Power/Data Interface (PDI)

15m Underwater Power/Signal Cable

Control/Processing Software

All necessary interface and power cables

ES3 MULTIBEAM ECHO SOUNDERSpecifications

Frequency:• 240 kHz

Swath Width (Nominal Beam Geometry):• 120° x 3° Transmit• 120° x 3° Receive

Effective Beam Widths:• Narrow – 0.75°• Medium – 1.5°• Wide – 3.0°

Connector:• Underwater wet-mateable 8 conductor Subconn at

transducer end, 8 pin Circular MS type connector at PDI end.

Power Supply:• 24 VDC nominal (9 to 30 VDC range with PDI) • Power Dissipation <25 Watts total

Dimensions:• 117mm (4.62”) H, x 162mm (6.38) L, x 92mm (3.63) W

Weight:• 8.2kg (18lb) in air

Material:• Stainless Steel Housing, Urethane Acoustic Window

Number of Beams:• Default – 480• Selectable – 240, 120

Real-Time Roll Compensation:• Requires TSS-1 (or Sounder) string input

Range Resolution:• 0.02% of Range

Range:• 60m (197ft.) water depth

• 100m (328ft.) slant range

Minimum Detectable Range:• 0.5m below transducer

Ping Rate (PRF)• 12 Hz at 20m range (Processor and # of real-time beams

selected dependent)

Maximum Operating Depth:• 10m (below the surface)

Interface to PC:• Ethernet (10 base-T) using TCPIP

Maximum Cable Length:• 100m using CAT5-e

Transducer Mounting

Bow Mount Example

Over-The-Side Mount Example

OTS Mount in Transit Case

Portable Over-the-Side Mount

Transducer Housing containing the ES3

Sonar Head and Motion Sensor

GPS Heading Device

Over-the-Side Mounting Bracket

Portable Mount for ES3 and Motion Sensor

University of Southern

Mississippi Hydrographic

Science Department

2007 Summer Project

Temporary Mount

Science Department

2007 Summer Project

Temporary Mount close-up

(Major in Hydrography,

Minor in Carpentry)

Science Department

2007 Summer Project

Newest CAT 1 Graduates

Who Says Hydro’s no fun!

Components of a Complete ES3 Multibeam System

• ES3 Sonar Head

• Power/Data Interface

• Motion Sensor

• Velocity Profiler

• Heading Sensor

• Positioning System

• ES3 Control/Processing Computer with Software

• Data Acquisition Computer with Software

Easy To Use

ES3 Multibeam System Integration

ES3 Sonar Head

Power/Data Interface

Control/Processing Computer

Acquisition

Computer And

Software

Odom Active

Junction Box

Sound Velocity (Head)

GPS Position

Motion Sensor

Sound Velocity Profiler (DB Pro)

Heading Sensor

Laptop for ES3 Control and Processing

Odom Active Junction Box

Positioning & Heading

ES3 Sonar Head ES3 Power/Data Interface ES3 Computer Running Control/Processing Software

Position

The Laptop Computer and ES3 Control/Processing Software replaces much of the hardware found in traditional multibeam heads. This concept makes the small size of the Sonar Head a reality.

Control commands and Raw data are exchanged between the Laptop and the Sonar Head through a 100 MB Ethernet Interface. Range and Angle data are also transmitted to the Acquisition PC through the network switch housed in the Power/Data Interface.

In addition, the PDI contains its own regulated and highly filtered DC to DC converter furnishing 24 VDC to the sonar head and accepting DC power input ranging from 9 VDC 30 VDC. This makes running the system from one “car battery” possible.

Motion Sensor

Motion (HRP)

Motion SensorWhen used with an Active Junction Box, DC Power, Heading, and Velocity data (NMEA VTG String) is provided to the motion sensor in order to aid its Heave solution. The industry standard, TSS-1 or Echo Sounder String includes values for Heave, Roll, and Pitch. The Roll data is used by the ES3 to provide real-time roll compensation. This eliminates the “scalloping” effect experienced with non roll compensated systems.

In the case of the motion sensor shown, mounting can be either vertical or horizontal depending on the requirements of the installation.

Active Junction Box

12/24VDC

Acquisition PC

Back to Flowchart

Heading

Motion Sensor

GPS VTG String

ES3 Cont/Proc PC

Profiling Sound Velocimeter Digibar Pro

Easy To Use!

1. Lower the Probe into the water to the 1 meter mark and allow it’s internal temperature to stabilize.

2. Press the Power button and select Acquire. Press Enter again and the depth sensor will be calibrated for atmospheric pressure.

3. Press Enter again and lower the probe to the project depth and retrieve. You have now collected a velocity profile in the hand unit’s memory.

4. Either Review and Edit the stored profile on the hand unit or download the profile to a PC using the supplied software.

Logging Software

S44 Requirements - Preparing to deploy a 1 meter cube

Surveying the 1M Cube

Mississippi River “Barge Canal”

Results!

University of Southern Mississippi

Hydrographic Science Department

2007 Summer Project

Unknown Wreck (Sailboat?) at

Pearlington, MS in about 8m of water

University of Southern Mississippi Hydrographic Science Department

2007 Summer Project

One Kilometer of the surveyed area near Pearlington, MS

The water body to the north is the beginning of the Stennis

Space Center canal system leading up to the locks. The in-coming

water body from the west is the East Pearl River that flows south from

Jackson. The blue in the north section depicts an area dredged after

Hurricane Katrina. The blue area at the river intersection shows an area scoured by the incoming water flow.

Unknown Wreck (Sailboat?)

Side Scan Sonar Image

ES3 Multibeam Data

University of Southern Mississippi Hydrographic Science

Department

2007 Summer Project

Known wreck, believed to be remains of a

wooden barge.

Science Department

2007 Summer Project

Remains of a sunken wooden

Science Department

2007 Summer Project

Scour at the Interstate 10

Bridge Pearlington, MS

Science Department

2007 Summer Project

Scour at the Interstate 10

Bridge Pearlington, MS

Odom Hydrographic Systems, Inc.1450 Seaboard Ave.

Baton Rouge, LA. 70810U.S.A.

225.769.3051225.766.5122 fax

email@odomhydrographic.com

Introducing the Odom ES3 Odom Hydrographic … the Odom ES3 Multibeam Echo Sounder...

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