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Aquatec Group • AQUAscat 1000R Sediment Profiler

Product Type
Sediment Profiler
Product Snapshot
Product Name
AQUAscat 1000R
Product Type
Sediment Profiler
AQUAscat Sediment Profiler
Aquatec Group
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The AQUAscat® 1000R represents a new generation of high frequency acoustic instrumentation. It has applications in sediment transport studies, including measurement of suspended sediment profiles, precision altimetry, dredge plumes and turbulence.

The AQUAscat transmits pulses of high frequency sound on up to four transducers, each of which may operate at a different frequency. It measures the sound scattered by sediment or other suspended materials at discrete spatial intervals programmable from 2½ millimetres to 4 centimetres. For altimetry, this may span a few tens of centimetres; for monitoring sediment suspension profiles, a total range of around 1-2 metres is typical; while dredge plume estimation may extend to 10 metres. The instrument is supplied in a subsea housing suitable for long-term unattended deployments. Batteries for various deployment schedules are available to order.
Features & Applications
Key Features
  • The AQUAscat 1000R can observe profiles of up to 10 m.
  • With the AQUAscat 1000R you can choose between 7 frequencies (300 kHz, 500 kHz, 1 MHz, 2 MHz, 2.5 MHz, 4 MHz and 5 MHz) and benefit from having the most appropriate frequencies for your research. The instrument can use up to 4 frequencies at a time.
  • For the most flexible sediment research, the AQUAscat 1000R has 4 cabled transducers (4 m in length) to give greater freedom in deployment and operation.
  • Once you have setup the burst sampling in AQUAtalk, you can be confident that the AQUAscat 1000R is operating at set intervals chosen by you.
  • For long-term deployments the AQUAscat 1000R can be connected to an external battery pack.
  • The instrument has integrated temperature and depth sensors to give you a better understanding of the water environment.
  • Aquatec offer an optional turbidity sensor that can be integrated with the AQUAscat 1000R. This provides a separate single point measurement of turbidity, giving optical measurements as well as acoustic. This feature is ideal for water quality monitoring, dredge monitoring and aquaculture projects.
  • The AQUAscat 1000R can be used in water depths of up to 1000 m.
  • Estuaries
  • Coastal areas
  • Rivers
  • Lakes
  • Oceans
  • Polar regions
  • Laboratory studies
Aluminium alloy housing
Depth Rating
1,000 m
Power Requirement
8V to 24V DC - typically 1W when logging, and with standby of typically 1mW when not logging

Battery Packs
Internal alkaline battery pack gives up to 10 days typical deployment
External battery packs available according to deployment needs
Sediment Range
Sensitive to a wide range of grain sizes
Size inversion typically feasible for 20 μm to 500 μm radius
Typically 0.01 g/L to 20 g/L over 1 m, or more over shorter range

Up to 4 frequencies, from 300 kHz to 5 MHz

Typically Ø10-25mm ceramic discs (beam width according to frequency), with other optional configurations
Individual cabled transducers

150 cm (typical), up to 10 m at frequencies below 2 MHz depending on options

Transmitted Signal
1 W rms typical transmit CW pulse, pulse length to match cell size

Transmission Rate
128 Hz max pulse rate for each frequency (i.e. 512 pulses per second for four), subject to acoustic range limits. Minimum rate 1 Hz for calibration

Data Averaging
Cell ensembles averaged over time by powers of 2 up to 64 before storage

Range Cells
256 cells – 2.5 mm, 5 mm, 10 mm, 20 mm and 40 mm at 1500 m/s speed of sound. Start/end range set by software

Burst Duration
Defined by number of profiles requested

Burst Trigger
Either external hardware trigger when required or internal software trigger at regular intervals

Burst Interval
Internally generated from once every minute to once every 255 minutes, user definable start time of first burst

Trigger Output
A digital output allows triggering of external instruments

Compact Flash (proprietary format). 8 GB standard
RS-232 ● USB
AQUAtalk for AQUAscat for logger interaction
AQUAscat toolkit for data processing
Related Products
The AQUAlogger® 310TY is a compact instrument that measures turbidity to 10,000FTU (typical), with optional integral temperature and pressure sensors. It can be used in freshwater and ocean environments, with models for shallow and deep water. The logger also features a tool to convert turbidity to suspended sediment concentration using in situ samples.
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