Award Data

The contractor has patented technology for a unique process that directly converts a two-dimensional acoustic disturbance, such as a wave front, into an intensity-mapped visible image in real-time without electronic circuitry; that is, it is a direct pressure gradient imager. The imager relies on the piezo-dichroic properties of a continuous layer of a dichroic material thin film that serves as bo ...

N/A

Naval Special Warfare is developing and testing equipment and tactics for neutralization of anti-invasion mines in the very shallow water maritime environment. The device proposed herein, an electromagnetic pulse mine countermeasure device, will enhance the capability of Naval Special Warfare to neutralize mines. The proposed device is expected to be effective against most, if not all, mine types, ...

N/A

There is a requirement for a seafloor mapping system that will provide high resolution imagery in very shallow water when rigidly mounted to a 24 foot boat that is advancing at up to 10 knots. In this Phase I effort we propose to determine the feasibility of meeting this requirement with a prototype multiple-ping chirp side-scan sonar to operate at high frequencies and high ping rates, where multi ...

SatCon Technology Corporation proposes to design, fabricate, and demonstrate a quiet, compact, variable speed, electric propulsion system with four magnetic signatures to be used in small mobile underwater vehicles. The goal of this program is to develop a propulsion system concept having minimal electromagnetic and acoustic noise characteristics for use in any special operations maritime environ ...

N/A

ON FEBRUARY 9, 1991, AT THE MIHAMA UNIT 2 NUCLEAR POWER STATION, OPEARTED BY KANSAI ELECTRIC CORPORATION, A STEAM GENERATOR TUBE RUPTURED AND RELEASED APPROXIMATELY 9,000 GALLONS OF REACTOR COOLANT INTO THE SECONDARY SYSTEM. THE LEAKAGE CAUSED A RAPID DEPRESSURIZATION OF THE REACTOR COOLANT SYSTEM, WHICH RESULTED IN AN AUTOMATIC REACTOR TRIP AND ACTUATION OF THE HIGH PRESSURE SAFETY INJECTION SYST ...

N/A

ACOUSTIC FIELDS CAN BE DESIGNED TO COAX LIQUID BORNE SUBMICRONIC PARTICLES TO ANNOUNCE THEIR PRESENCE LOUDER THAN THE USUAL SCATTERING SIGNALS WHICH ARE PRIMARILY DETERMINED BY THE DENSITY AND COMPRESSIBILITY CONTRAST BETWEEN THE PARTICLE MATERIAL AND THE HOST FLUID. WE EXPECT A SIGNAL ENHANCEMENT OF AT LEAST 60DB. THE KEY CONCEPT IS TO COAX THE PARTICLES TO SOFT CAVITATE AND DETECT THE ENSUING TR ...