Award Data

F&S and their research partners propose a comprehensive plan to develop a fiber optic-ased chemical detection system for the quantification of metal contaminants in aviation fuel. The system will utilize recently developed long-period grating (LPG) technology which detects index-of-refraction changes resulting from target molecules binding to affinity coatings. Calculations based on experimental ...

Bends in waveguides are a problem for high-voltage Ultra-Wideband (UWB) systems. The difficulty arises because only a straight section of standard transmission line can support a pure TEM mode. And a pure TEM mode is necessary to preserve the risetime of the transmitted impulse. When there is a bend in the waveguide, the transmitted signal is a broader impulse than the incident signal. This ca ...

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The Government needs a process that develop Form, Fit, Function, and Interface (F3I) specifications for legacy electronics, even when no or almost no design information is present. The process must succeed even when only hardware samples and test information are available. The proposed effort will develop a process by which F3I test requirements can be successfully re-engineering from legacy dat ...

We propose to design and fabricate an optical filter that can be tuned continuously from 1.5 um to 2.5 um with a linewidth less than 1 nm. Our system consists of 2 separate filters that can each be electronically tuned. One provides a large free spectral range, and the other provides a narrow linewidth.

MicroFab Research (MFR, Inc.) proposes to apply the techniques of micromachining to aid in the fabrication of millimeter wave components, thereby reducing manufacturing expenses. Many microwave applications such as radar and communication systems would be improved by shifting to higher frequencies, provided new lower cost manufacturing techniques can be found. A manufacturing technique is presen ...

We propose a standard software system that enables a natural, intuitive interface between computer operators and their data, for improving and increasing the capability of Air Force C4I systems. Specifically, the tasks addressed here are: (1) multi-dimensional map displays for interactive planning tools; (2) new tools for modernization of base-level business processes; and (3) improved human int ...

Knowledge based methods have the potential to offer high performance solutions to a wide variety of problems. However, the development of large scale knowledge bases (KBs) and their effective application to problems have so far proved to be more expensive and less feasible than other competing methods such as statistical methods or weak search techniques. There is an immediate and critical need to ...

DIAGNOSTx Technologies proposes to develop a PC-based instrument for the clinical evaluation of peripheral and central hearing deficits, which will allow audiometric, otoacoustic emissions, evoked-potentials and immittance testing. The integrated system will be capable of assessing hearing sensitivity for speech and pure tones, of evaluating the integrity outer hair cells and auditory central ner ...

Efforts to apply active noise and vibration control commercially, while intensifying, continue to be hampered by the cost of the computers required to implement the active algorithms. Currently, the cost of wide-band control is prohibitive for lightly damped systems such as precision structures or highly reverberant acoustic spaces, even if the system has just one canceling actuator and one error ...