Expendable Conductivity, Temperature and Depth (ExCTD)

Period of Performance: 01/01/2015 - 12/31/2015


Phase 2 SBIR

Recipient Firm

Progeny Systems Corp.
9500 Innovation Drive
Manassas, VA 20110
Principal Investigator


Progeny Systems has performed analysis and preliminary design of an Expendable Conductivity, Temperature and Depth (ExCTD) sensor that can be launched from the 3? launcher on the submarine during the SBIR Phase I effort. The ExCTD can launch, ascend toward the surface, flood (change buoyancy) and then descend to sample the water column every 10 feet during ascent and every 5 feet during descent at a speed of 10 ft/sec. During the profiling mission the sampled CTD data will be transmitted to the Submarine in real time via a fiber optic link where processing will calculate the Sound Velocity Profile (SVP) and Water Density. The ExCTD incorporates a low-cost modified Commercial Off the Shelf CT sensor which is pumped with seawater using a custom designed gear pump. The CT sensor components are licensed to Progeny and they will be integrated effectively into the final product. Phase II includes a detailed build-test-build approach of the initial prototypes to develop the Engineering Development Model baseline. EMD models will be built and tested at-sea and at the NUWC 3? launcher facility. During the Option, a production baseline will then be set and additional units manufactured for additional testing culminating in submarine TEMPALT testing.