NMEA2000 Marine Liquid Level Sensor

May 14, 2014

gill-rd-application-story-griffon-hoverwork-liquid-level-sensor-nmea2000.jpgGriffon Hoverwork, a worldwide leader in the design and manufacture of hovercraft. Griffon approached Gill R&D to design and manufacture a capacitive liquid level sensor to be installed inside the hovercraft fuel tanks which would withstand severe operational conditions experienced on the crafts.

The challenge

With hovercraft propellers and turbulent sea conditions generating high vibrations and unsteady conditions, the accumulation of reliable fuel level data is difficult to achieve. A solution was required to meet the high temperatures experienced under the hovercraft skirt. Compatibility with NMEA 2000 outputs was also needed to ensure the sensor could be connected with multiple devices as part of an integrated networking system.

The result

Gill R&D produced a 316 marine standard stainless steel capacitive liquid level sensor designed for high temperature operation from -40°C to 125°C. The sensors have been deployed as standard fit inside the new fleet of hovercrafts to ensure ultimate in-service reliability throughout the expected life of the crafts.

Project results and benefits

  • Production and manufacture of a new sensor solution for installation into Griffon's fleet of hovercrafts.
  • Provided specialist understanding of the technology and specifications to ensure best data collection.
  • Provided Griffon Hoverworks technical aftercare and support
  • Delivered complete concept design development using in-house facilities
  • Provided full calibration and temperature compensated over the specified temperature range
  • Delivered critical monitoring of fuel and ballast levels with confidence that the accuracy and reliability is maintained during hovercraft operation.

Phases of working with the customer

  • Customer brief and requirements capture
  • Concept Definition, analysis & optimisation
  • Detailed design of the new sensor, PCB and CANBUS firmware
  • Prototype manufacture (customer application testing and design verification)
  • Design verification and environmental testing
  • Production pilot build and product launch



Do you have a new development requirement?

We have extensive experience taking projects through all phases of development, in rapid timeframes.


Tel: +44 (0)1590 613400








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