ELWAVE

ELWAVE is an innovative developer of subsea imaging sensors for ROVs (remotely operated vehicles), AUVs (autonomous underwater vehicles) and subsea robotic platforms.

Based on a unique and world-first biomimetic electric sensing technology, our sensors are ideal for a wide range of unmanned underwater vehicle applications in both the civilian and military sectors.

CEDAR – cutting-edge electric sensing technology

Our CEDAR (Controlled Electric Detection And Ranging) technology is inspired by the electrical sensory perception of tropical freshwater fishes, which use this unique capability to navigate, hunt prey, and communicate with each other in challenging environments where sight and echolocation are ineffective.

CEDAR generates a low-frequency AC electric field that is disrupted by objects in the near vicinity, causing changes in current intensity. These disturbances can be measured and used to characterize the underwater environment even in the murkiest of conditions.

Octopulse

Seabed imaging solution for AUVs & ROVs

Octopulse is a compact and lightweight imaging sensor based on our proprietary CEDAR technology, and is ideal for a wide range of platforms, including ROVs, AUVs and crawler robots. The modular system utilizes an array of up to eight electrodes with cables up to 7 metres in length, and provides 360-degree real-time detection.

The sensor provides highly effective detection, localisation and classification of both metallic and non-metallic objects as well as buried targets. It delivers excellent performance in noisy environments and high levels of suspended sediments, and works both in water and in air. With no moving parts and low power consumption, it can provide contactless characterisation of any kind of surface or material, and is ideal for long-term deployments requiring little maintenance.

The export restriction-free Octopulse is provided as a complete kit comprising the sensor pod, up to eight electrodes and cables, and all necessary firmware and user interface software. It is currently available in 300m and 6000m depth-rated versions.

Learn more: Octopulse seabed imaging solution for AUVs & ROVs

Tetrapulse ESENSE 300

Compact subsea electric sensor for AUVs & ROVs

Tetrapulse is the smallest form factor implementation of our CEDAR sensing technology, and is the world’s most compact subsea electric sensor. Utilizing up to four electrodes, the modular system can be provided with cables ranging from 1.5 to 7 metres in length, and is ideal for a wide range of AUVs, ROVs, crawler robots, and other underwater vehicles.

The sensor provides highly effective detection, localisation and classification of both metallic and non-metallic objects, and can detect buried targets at depths of 1 to 2 metres. It is rated for operation at depths of down to 300 metres.

Learn more: Tetrapulse compact subsea electric sensor for AUVs & ROVs

Applications

Naval mine and UXO

Able to detect both ferrous and non-ferrous objects at depths of 1 to 2 metres, our subsea electric sensors can be easily used for detection, localization, and classification of targets.

ROV & AUV Navigation

With an effective detection range of up to 5 times the length of the vehicle, Octopulse and Tetrapulse are ideal for unmanned underwater vehicle navigation and obstacle avoidance, and is an excellent complement to cameras and sonars. Providing real-time situational awareness in 360 degrees, it enables underwater robotic vehicles to operate safely and effectively under highly challenging conditions.

Survey & Monitoring

Thanks to its contactless detection and characterization abilities, our subsea electric sensors provide survey ROVs and AUVs with a critical sensing capability for underwater surveying and the monitoring and maintenance of offshore infrastructure.