OceanEcho

Underwater Acoustic Projector & Data Recorder

High-performance acoustic projector-receiver system based on the proven AMAR G4 data acquisition system


OceanEcho makes it easy to switch between active transmission and passive listening. Compatible with a variety of acoustic sources at various frequencies, source levels and directivity patterns, this system supports multiple receive channels and a variety of hydrophone responses. Upload one or more WAV files for projector playback, with advanced scheduling options.

 
 
10 TB memory on removable SD cards4 to 16 acoustic channels at up to 512 kspsTransmits and records sounds simultaneously
 
 
 
 

Potential applications

  • Sound source for ocean sound propagation or acoustic tomography experiments

  • Sound source for acoustic locating & navigation

  • Sound source for time synchronization

  • Active/passive system for measuring biomass

  • Active/passive system for acoustic communications

  • Active/passive system for acoustic profiling instruments

 
 
 

Specifications

Environmental
Maximum depth: 250 m
Operating temperature: −5 to 50 °C
Storage temperature: −18 to 55 °C
Physical
Dimensions (D × L): 6.5 × 35.7 in    [165 × 907 mm]
Material: PVC, anodized aluminum
316 stainless steel, titanium
Approx. weight in air: 25.4 kg    [56.0 lbs]
Approx. weight in seawater: 10.0 kg    [22.1 lbs]
Projector
Input audio format:16-bit WAV
Supported sample rates: 8, 16, 32, 48, 75, 125, 250, 375, 500 ksps
Playback:Advanced scheduling options supporting multiple WAV files
Transducer:• GTI M18C-4.0:      10–100 kHz
• GTI C-BASS M72-100:  80–250 Hz
Others upon request
Hydrophone & arrays
Example sensitivities:-164 dB re 1 V/μPa @ 1 kHz
-210 dB re 1 V/μPa @ 1 kHz
Sensor types:Omnidirectional hydrophones  Small linear arrays
Directional hydrophones    Small spatial arrays
Vector Sensors
Acoustic channels
Number of channels: 4 to 16
Sample rates: 8, 16, 32, 64, 128, 256, 512 ksps sampled synchronously
Resolution: 24 bits
Spectral noise floor: Better than −150 dB re FS per root Hz at all sample rates
Channel gain: Fixed and optimized to match the chosen hydrophone
Oceanographic sensors
Sensor options: Oxygen     Salinity
Acidity/pH   Depth
Turbidity    Orientation (roll-pitch-yaw)
Temperature  Others upon request
Four analog channels: Sample rate:  1 sps
Resolution:   10 bits
Voltage:     0 to +5 V
Three serial channels: (Unavailable when more than 4 acoustic channels are used)
One RS-232 and
Two configurable as RS-232, RS-422, RS-485, or 3.3 V logic level
Memory
Removable flash memory:Up tp 10 TB on 512 GB SD cards
Data format: WAV, CSV
Power
Operating voltage: 24 VDC
External battery packs: 48 or 96 D-cells, alkaline
AC power adaptor: 110–240 V, 50–60 Hz, 0.5 A
Communications
Wired Comms Box to connect via Ethernet
Activation plug to turn on and off
AMARlink configuration software

Due to continued product improvement, these specifications are subject to change without notice.

 
 
 

Learn more

Featured
OceanEcho Brochure
OceanEcho Brochure

Underwater Acoustic Projector & Data Recorder

A high-performance acoustic projector-receiver system based on the proven AMAR G4 data acquisition system.

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