Harsh Environment Sensors for a Naval Electromagnetic Launcher Navy SBIR FY2008.1 Sol No.: Navy SBIR FY2008.1 Topic No.: N08-066 Topic Title: Harsh Environment Sensors for a Naval Electromagnetic Launcher Proposal No.: N081-066-0402 Firm: Prime Research, LC 1750 Kraft Dr Ste 1000-B Blacksburg, Virginia 24060 Contact: Dan Kominsky Phone: (540) 961-2200 Web Site: www.primephotonics.com Abstract: Prime Research, LC (PRLC) with the expert assistance of Lawrence Livermore Nation Labs (LLNL) proposes to develop a suite of diagnostic sensors for electromagnetic launchers (railguns). Measurement capabilities to be provided include strain, pressure, electric field, and magnetic field. This suite of photonic sensors is based on an entirely dielectric fiber optic platform which renders it immune to any issues with the harsh electromagnetic environment. Each sensor is capable of withstanding temperature in excess of 300�C, and all have frequency response characteristics in excess of 10 MHz. In addition to the transducers, the proposed effort includes modification of the PRLC sensor interrogation technology to allow for modular selection of transducers. Upon fabrication of the sensors, they will undergo laboratory testing. In the Phase I option, the effort will be expanded to include testing in a representative railgun environment, as well as investigation of instrumenting the armature. Benefits: The development of a line of sensors which measure electric and magnetic fields represents a natural expansion of PRLC's existing line of sensors for turbine instrumentation. By incorporating field sensors with the pressure, temperature, and strain sensor products, PRLC can expand the coverage of our measurement capability from the turbine side of power generation, through generators, and power electronics. One sample application is to provide a comprehensive suite of health monitoring tools which feed an overall prognostic engine, enabling the end user to conduct pro-active system maintenance. Return