Acoustic & Sonar Technologies for Marine & Maritime Applications

eSonar is a leading developer of acoustic and sonar technologies for marine and maritime applications. Our mission is to provide our customers with enhanced access to subsea environmental data, ensuring greater efficiency and reduced operating costs while promoting sustainability and protecting endangered marine life.

We work closely with academic researchers as well as leading representatives from the fishing, aquaculture, and oil and gas industries to ensure that our solutions and products keep pace with the ever-changing needs of these sectors.

Micro Sonar Nodes

Altimeter & collision avoidance sonar for AUVs & ROVs

Our Micro Sonar Nodes are small form factor altimeter and sounder units designed to deliver enhanced situational awareness capabilities for AUVs, ROVs and underwater robotics platforms. The system utilizes a suppressed side-lobe beam pattern, and provides an operating range of up to 100 metres.

Each unit consists of a PCB that can support up to five 200 kHz transducers, which can be mounted within a sealed housing along with the PCB, or installed in a free-flooded configuration.

Water Immersion Detection

Non-contact immersion detection & power switching for subsea sensors

Our Seacap water immersion detectors allow subsea sensors to be automatically activated when immersed in seawater, providing enhanced convenience and maximizing battery life. The system is made up of three PCBs – a 10 Amp rated high side switch board, a power supply board, and a sensing board – all of which can fit comfortably in a 9/16″ (14.3mm) outer diameter recess.

Seacap is available as a 1000m rated o-ring sealed pressure housing penetrator that can mount in any pressure housing. We can also provide custom integration into your sensor designs, with full support from our expert engineering team.

TrawlVue Monitoring System

Trawl management solutions for commercial fishing & research

We provide a full suite of marine-grade trawl management solutions that are ideal for a range of commercial fishing and scientific research applications. All sensors feature rechargeable Li-Ion batteries and advanced power management that enables long operating lives of up to 400 hours between charges.

SeineVue Monitoring System

Acoustic monitoring solutions for purse seine fisheries

The SeineVue wireless acoustic monitoring system is designed to ensure maximum efficiency and optimized operation for purse seine fisheries, utilizing omnidirectional sensors mounted on the foot of the seine that transmit depth and temperature information. This data is received by a vessel-mounted omnidirectional hydrophone and graphed on an intuitive real-time GUI, allowing timely pursing of the net for optimal catch yields.

Marine Mammal Detection

Acoustic monitoring systems for marine mammal protection

We are developing state-of-the-art technologies aimed at reducing the impact of commercial shipping activities on endangered marine mammals. Our Marine Mammal Detection system is based around a pop-up system that utilizes a sensor package with a variable buoyancy engine that traverses a vertical mooring line, and detects radiated vessel noise as well as the presence of whales.

The system can transmit data via SATCOM in order to provide passing vessels with information on their noise signature, as well as the presence of whales within a range of over eight kilometres.

Marine Vessel Noise Measurement

We have developed innovative and fully integrated data collection technologies that characterize the broadband propeller noise emitted from a range of different vessel types. This data can be used to study the impact of this noise upon the surrounding environment, as well as to provide crews with information on how noise is linked to vessel thrust and speed. Learn more >

Extended Development & Design Services

eSonar can assist you with a wide variety of design aspects for subsea sensing and sonar electronics. Our expertise includes hardware and software engineering, transducer design, prototyping, product design and project management.

Partnering with us also gives you access to our extensive intellectual property library, as well as sophisticated firmware and signal processing software. We aim to foster long-term relationships through supply chain integration, and can provide continuous updates to your products thanks to our strong focus on research and development. Find out more >