Application: measuring water depth

River bathymetry – Rimouski, 2013.

The HydroBall® buoy measures 15 ¾” in diameter, weighs under 28 Lb, and has an autonomy of over 24 hours.

The HydroBall® integrates three main components: a GNSS L1/L2 receiver, a miniature inertial motion sensor, and a single beam echosounder.

The GNSS L1/L2 receiver measures the buoy’s position (latitude, longitude, and ellipsoidal height).  The miniature inertial sensor measures the buoy’s attitude (roll, pitch, and heading).  The echosounder measures the depth under the buoy.  The output of all three components are fed into a mini-controller unit inside the buoy that allows up to ten soundings per second to be referenced to the seabed.  By moving the buoy over the zone to be mapped, sufficient data can be collected and modelled to accurately depict the bathymetry of the zone.




Specifications sheet : 


The inherent quality of the onboard sensors combined with the robustness of their physical mounting inside the buoy (known offsets) and time-synchronisation software allow the buoy’s hydrographic data to meet the highest quality data as described by the IHO’s (International Hydrographic Organisation) S-44 standards.

The HydroBall® buoy differentiates itself from other alternatives primary by:

  • A compact and extremely robust design that allows deployment in high-risk zones which remain inaccessible to competing systems. For example, the buoy can be released in a river’s high current zone, towed by a helicopter or other platform of opportunity, or even mounted to an amphibious vehicle.
  • An seamless software intelligence for the georeferencing, filtering, and quality analysis of the soundings collected. This approach where the parameters are constant and the processes are automated guarantee bathymetric data collection to the highest IHO standards during a deployment where the buoy operates autonomously or with a non-expert operator.

Compatible with HydroMagic,HYPACK and Caris

Survey monitoring with HydroMagic

SBP processing workflow


HydroBall® GNSS

Applications: measuring water depth, determining chart datum, measuring wave height

Measuring water depth – Port of Rimouski, 2016.
Measuring wave height – INRS’ hydraulic canal, 2016.









Spécifications principales :

Dimension: 40cm diameter

Autonomy: 24 hours to 30 days (with external battery packs)

Weight in air: 13kg to 85kg (with external battery packs)

Deployment mode: autonomous



HydroBall® Calibration

Application: hydrographic surveying system calibration

In development…