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IN THIS PROGRAM, THE FEASIBILITY OF PRODUCING A HOLOGRAPHIC LITHOGRAPHY MACHINE WILL BE INVESTIGATED. SUCH A MACHINE SHOULD HAVE HIGH RESOLUTION, LARGE FIELD MASKS, AND MINIMUM ABERRATION. BOTH THEORETICAL AND EXPERIMENTAL EFFORTS WILL BE MADE IN PHASE I TO FULLY DETERMINE THE LIMITS OF THIS APPROACH AND THE POSSIBILITY OF DESIGNING A PRACTICAL LITHOGRAPHY MACHINE FOR INTEGRATED CIRCUIT APPLICATIO ...

A NEW PLANAR LASER INDUCED FLUORESCENCE TECHNIQUE WHICH WILL PROVIDE THE FLOW VELOCITY AND THE CONCENTRATION OF VARIOUS SPECIES AT MANY POINTS ON A PLANE OF A HYPERSONIC FLOW (WITH AND WITHOUT CHEMISTRY) IS PRESENTED. THE TECHNIQUE HAS THE POTENTIAL OF MEASURING TEMPERATURE AS WELL. UNLIKE OTHER TECHNIQUES, THE PROPOSED APPROACH WILL MAKE USE OF BREADBOARD PULSED LASERS. IN THE PROPOSED METHOD, TH ...

WE PROPOSE TO DEVELOP A SENSING TECHNIQUE BASED UPON LASER EXCITED FLUORESCENCE FROM MOLECULAR OXYGEN IN AIR WHICH CAN BE USED FOR ENGINE INLET FLOW FIELD ANALYSIS IN SUPPORT OF HYPERSONIC PROPULSION SYSTEM DEVELOPMENT AT AEDC. THE APPROACH PROPOSED IS CAPABLE OF PROVIDING ACCURATE SINGLE PULSE DETERMINATIONS OF FLOW TEMPERATURE AND DENSITY. THIS APPROACH IS BASED UPON PULSED LASER EXCITATION OF T ...

A RESEARCH PROGRAM IS PROPOSED TO DEMONSTRATE THE FEASIBILITY OF A COMPANY PROPRIETARY LIGHTWEIGHT, COMPACT SOUND SOURCE CONCEPT TO GENERATE THE HIGH INTENSITY, HIGH FREQUENCY CONTROLLED SOUND PRESSURES REQUIRED IN EXPERIMENTAL INVESTIGATIONS OF COMBUSTION INSTABILITY IN LIQUID ROCKET ENGINES. THE PROPOSED WORK PLAN IS DIVIDED INTO THREE PRINCIPAL PARTS. THE FIRST IS TO SELECT THE MOST PROMISING D ...

A MAJOR BARRIER TO THE DEVELOPMENT OF EMERGENCY CREW ESCAPE SYSTEMS FOR HYPERSONIC SPACE-CAPABLE VEHICLES (I.E. NASP) IS THE EXCESSIVE WEIGHT ASSOCIATED WITH THE REQUIRED THERMAL PROTECTION HEAT SHIELD. IN THIS PHASE I PROGRAM, ULTRAMET PROPOSES TO UTILIZE ITS EXTENSIVE EXPERIENCE AND EXPERTISE IN THE FABRICATION OF LIGHTWEIGHT REFRACTORY FOAM STRUCTURES TO REDESIGN THE HEAT SHIELD USING NEW MATER ...

DELAY LINES FABRICATED FROM HIGH-TEMPERATURE SUPERCONDUCTORS PROMISE BETTER PERFORMANCE WITH MUCH LOWER WEIGHT, VOLUME, POWER, AND COST REQUIREMENTS THAN CONVENTIONAL TECHNOLOGIES. WE PROPOSE TO FABRICATE AND MEASURE THE WIDE-BAND DISPERSION, LOSS, AND POWER-DEPENDENT CHARACTERISTICS OF A SUPERCONDUCTING DELAY LINE IN THE 6GHZ TO 18GHZ FREQUENCY RANGE FOR USE IN HIGH PERFORMANCE ELECTRONIC WARFARE ...

THERE IS A RECOGNIZED NEED FOR IMPROVED ANTENNAS FOR USE ON HYPERSONIC VEHICLES SUCH AS THE X-30. THIS PROPOSAL HAS AS ITS MAIN OBJECTIVE THE IDENTIFICATION AND/OR DEVELOPMENT AND EVALUATION OF MATERIALS FOR THE DESIGN OF IMPROVED ANTENNAS FOR OPERATION IN THE HIGH TEMPERATURE ENVIRONMENT OF HYPERSONIC VEHICLES. THE WORK PLAN INCLUDES THE ESTABLISHMENT OF A BASELINE ANTENNA ELEMENT TO PROVIDE A PR ...

THE ACCURATE MEASUREMENT OF ELECTROMAGNETIC FIELDS IS OFTEN COMPLICATED BY THE INTERACTION BETWEEN THE FIELD BEING MEASURED AND THE RECEIVING ANTENNA WITH ITS ASSOCIATED ELECTRONICS AND CABLING. WITH THE DEVELOPMENT OF HIGH FREQUENCY FIBER OPTIC ANALOG LINKS, OPTICAL CABLES HAVE BEEN USED TO ISOLATE THE MEASUREMENT ANTENNA. HOWEVER, PREVIOUS EFFORTS HAVE HAD THE DISADVANTAGE OF REQUIRING A RELATIV ...

THIS PROPOSAL DESCRIBES A PROGRAM TO DEVELOP A SYSTEM TO MEASURE THE SPATIAL AND TEMPORAL DISTRIBUTIONS OF PARTICLE SIZE, LIQUID WATER CONTRENT, AND VELOCITY AT THE ENGINE INLET OF ADVANCED AIRCRAFT. THE SYSTEM USES MINIATURIZED AND RUGGED COMPONENTS WHICH ARE CAPABLE OF ELECTRONIC FOCUSING ALLOWING IT TO MEASURE THE NEEDED DISTRIBUTION ACROSS THE INLET SPAN WITHOUT LMOVING THE PROBE ITSELF. AUTOM ...