Subsurface Expendable Profiler

Arete and its subcontractor, Ultra Electronics Ocean Systems, will design the Subsurface Expendable Profiler. The Profiler merges Arete's Sensor technology and Ultra's acoustic communication technology to achieve untethered real-time data collection of conductivity, temperature, and depth. This device will be deployed identically to the historical probes using the submarine signal ejector. Once ejected and clear of the submarine, the device separates into two sections, one containing the CTD Sensor Module and another containing the Acoustic Communication Module. The CTD Sensor Module collects depth related temperature and conductivity data on its ascent and descent. This data is delivered via one wire tether to the Acoustic Communication Module, which in turn wirelessly sends the data back to the submarine in real-time. Upon completion of the measurement cycle the device scuttles. Direct depth knowledge allows versatility in the device to not rely on ascension to the water surface which supports under ice measurements.