Autonomous Hydroacoustic Releases AHAR

Hydroacoustic releases of AHAR-series
are very reliable devices, they are intended to recover various underwater packages by means of anchor release.

General Features:

• Long operational time
• Operational depths to 6000m
• Shallow water version to 100m
• High reliable
• Non-corrosive materials
• Light weight
• Easy to use
• Measurement of slant range

GeO-DROME
Geophysical Deepwater Research Observatory

For multidisciplinary geophysical ocean observations.  It is a complex of unique oceanographic systems to measure bottom and near-bottom phenomena in the deep ocean,  continental shelf, or inland basins. Areas of investigation include earthquakes and tsunamis.

It can transmit data via cable to shore or store data onboard, or both.

Autonomous Hydroacoustic Transponder

Designed to operate as a part of the HANS underwater navigation system (below).  The transponder casing is made of an aluminum-alloy and provides the transponder its own positive buoyancy. Features:

• Corrosion proof - long life
• Ideal for use in depth to 6000 meters
• Wide range of dimensions
• Various modifications are available
• Compact, light weight - easy one man deployment
• Compatibility with many hydroacoustic systems
• Low cost
• Easy to service construction for on-deck maintenance
• User-replaceable "C" size alkaline cell batteries

Hydroacoustic Navigation System (HANS)

It is used to locate the position of surface vessels, towed and autonomous vehicles with respect to several bottom transponders at long base mode.

• Unlimited area of operation
• Reliable electronics
• User friendly software
• Ideal for use in depths to 6000 meters
• Low cost
• Wide range of transponder modifications are available

Cassette Sediment Trap

The cassette sediment trap is intended to collect the sediments in water medium to determine vertical stream of material and
investigate their season variability. The trap may be used in oceans, seas and other water basins as a part of anchor or drifting buoy stations.  Features:

• Collects 12 discrete samples
• Non-corrosive titanium frame
• Simple programming of time
• Variable time before opening
• Removable baffle
• Sampling area 0.5m

POTOK-3 Current Meter

This current meter gathers average
parameters of sea water as a part of a
hydrophysical station.  It includes channels for latitude and meridian components of current and for temperature.

The base model of the POTOK-3 has the following features:

• User-friendly software
• Depth to 6000m
• Precise algorithm for vector averaging
• Long life titanium case
• Reliable electronics
• Power independent memory
• Excludes "pumping" due to wave action in the coastal zone
• Can mount additional sensors including those for sound velocity, density, and conductivity