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Sea-Bird Scientific’s HydroCAT-EP V2 CTD Sensor Integrated onto Sonardyne’s Origin 600 ADCP
Sonardyne has integrated Sea-Bird Scientific’s
HydroCAT-EP V2 multiparameter CTD (conductivity, temperature, depth) sensor into an
Origin 600 ADCP (acoustic doppler current profiler). The
HydroCAT-EP V2 includes several sensors such as pressure, dissolved oxygen concentration, chlorophyll and turbidity, which can be used to measure various aspects of water quality and ocean health. The
HydroCAT-EP V2 CTD can stream data directly into the
Origin 600 ADCP external sensor port, or it can be connected via the Origin E-Mux multiplexor, which can receive measurements from up to four sensors and pass their data to the ADCP. The Origin E-Mux also provides additional power to the
ADCP and any external sensors, allowing for extended deployments. All sensor data is logged on
Origin 600 for download post-deployment but can also be fused with ADCP measurements within the
Sonardyne Edge computing environment. Fused data can then be transmitted to the surface via
Origin 600’s integrated acoustic modem. This integration provided a good example of the above process: the
HydroCAT-EP V2 was preconfigured to produce measurements at a fixed rate using supplied Sea-Bird Scientific software. It was then cabled to
Origin, which powered the sensor and logged the received data. The data was fused with ADCP current measurements in Origin’s
Edge computing environment, allowing in-situ combination of multiple parameters into a NMEA-style string. This string was transmitted acoustically to the surface every five minutes using Origin’s integrated acoustic modem. The NMEA data was then further distributed to a Cloud account, allowing users to view live updates of current speed, current bearing, conductivity, temperature and pressure.
Sea-Bird Scientific is grateful for the opportunity to partner with
Sonardyne and UK-based distributer
Planet Ocean to make this integration a success.
