EdgeTech 3400-OTS
Lightweight Shallow Water Pole Mount Sub-bottom Profiler
The 3400-OTS transmits wide band Frequency Modulated pulses utilizing proprietary Full Spectrum CHIRP. The system uses flat multi-channel hydrophone array to generate high resolution images of the sub-bottom stratigraphy in oceans, lakes, and rivers and provides excellent penetration in various bottom types. The 3400-OTS receiver array is segmented for standard sub-bottom profiling operations or “pipeline” mode for location and imaging of buried pipelines or cables.
Edgetech
West Wareham, US
Description
Building on the long running success of the EdgeTech sub-bottom profiler product line, the new over-the-side pole mount 3400-OTS provides users many unique enhancements to current sub-bottom profiler systems. The 3400-OTS transmits wide band Frequency Modulated (FM) pulses utilizing EdgeTech’s proprietary Full Spectrum CHIRP technology. The system uses flat multi-channel hydrophone array to generate high resolution images of the sub-bottom stratigraphy in oceans, lakes, and rivers and provides excellent penetration in various bottom types. The 3400-OTS receiver array is segmented for standard sub-bottom profiling operations or “pipeline” mode for optimal location and imaging of buried pipelines or cables. The system offers real-time reflection coefficient measurements. This unique ability of the EdgeTech sub-bottom profiler system allows users the ability to collect complex ‘analytic’ data using linear system architecture to measure sediment reflection and analyze sediment type determination. Additionally, the system has discrete transmit and receive channels allowing for continuous data collection resulting in a high ping rate particularly important for construction and pipeline surveys.
The lightweight 3400-OTS is ideal for shallow water surveys using small boats of
opportunity. While the low frequency model with dual transmitters and large receive array is ideal for deep water and windfarm applications.
The EdgeTech 3400-OTS sub-bottom profiling system comes as a complete package including EdgeTech’s DISCOVER sub-bottom acquisition & processing software. The 3400-OTS can also be interfaced to 3rd party software.
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Specifications
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Mode of operation
-
Platform type
Pole Mounted
Max. frequency [Hz]
1600
Signal composition
Chirp
Max. penetration [m]
80
Max. pulse rate [Hz]
18
Max. pulse length [s]
0.1
Dynamic range [dB]
120
Heave corrected
Y
Pitch corrected
Y
Roll corrected
Y
Programmable source signatures
variable
Frequency
Wide band
Cable length
30m
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Hardware/software requirements
-
Operating System
Windows® 10
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General
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Product type
Sub-bottom profiler
Year of initial development
2021
Application
High Resolution
Max power consumption [W]
250
Power type
AC
Transducer weight [kg]
21
Transducer length [m]
2
Transducer width [m]
0.8
Transducer height [m]
0.8
Weight of logging unit [kg]
21
Length of logging unit [m]
2
Width of logging unit [m]
0.8
Portability of logger
Portable
Operating temperature: max. [°C]
50
Operating temperature: min. [°C]
0
Size (Deck unit)
portable
Weight (Deck Unit)
5kg
-
Integration in work process
-
External heave input
Y
External roll input
Y
External pitch input
Y
External positioning input
Y
Marking of events
Y
Real time coupling to survey software
Y
Coupling to post-processing software
Y
-
Data Processing
-
Data displayed
Depth of towfish, depth of penetration, thickness, classification, speed, position
Main use
Sediment classification, pre/post dredging, pipeline surveys, buried object location etc.
Data output
Raw and match-filtered data
Formats
SEGY/proprietary
Data output for seafloor classification
Y
Connections
Monitor
Internal logging
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