Award Data

Testing of machine tools has been evolving for nearly 100 years. The advent of low cost computer data analysis, control and communication has allowed the design, manufacture and inspection of complex contoured surfaces. The need to ever decrease the tolerances has led to the development of machine tools which can no longer be tested with these old methods. These machines must be evaluated within ...

High resolution magnetic mapping is a technique that has shown great value in the forensic evaluation of magnetic audio recording tapes. The use of single element raster scan systems has shown that the technique has promise in diagnosing many other systems where internal currents or magnetized inclusions generate external measurable fields. NIST has developed a 256 channel MR array sensor that ha ...

Significant advances have been made in machining technology, most notably machining centers capable of spindle speeds and feedrates that are an order of magnitude higher than conventional. However, the use of this new technology requires much more technical expertise, and experience and intuition are no longer sufficient. Specifically, machine tool productivity can be greatly enhanced if informati ...

IAI proposes to first develop the functional specification and architecture for the Policy Machine that can be deployed on a local machine as well as a networked platform such as LAN, web services, clouds etc. The policy machine at its core is a meta-data (attribute) based access control engine which utilized policy-based rules to allow or dis-allow use of resources. The attributes may belong to e ...

A simulation platform to develop multi-posed models for micro-Doppler sensing is proposed. CAD model based human subject models, and hardware accelerated bio-electromagnetic modeling will be developed to understand EM interaction with human subject models. Since each organ is defined via a set of vertex coordinates, various morphing algorithm can be implemented. Consequently, the proposed models ( ...

Our society has become increasingly dependent on the reliability and proper functioning of a vast number of interconnected information systems. To improve the security of these systems, it is necessary to measure the amount of security provided by different systems and configuration since one cannot improve what cannot be measured. In this proposal, Intelligent Automation Inc. (IAI) and its consul ...

The NIST array was the first public-domain digital array hardware design. It introduced the (then) novel idea of live capture and streaming of raw array microphone audio over Ethernet for use by one or more computers on a network. The design has been improved over the years to bring it to the Mark III version 2 (2005). The present system is an excellent tool for research into microphone arrays, au ...

The use of nickel alloys is pervasive in jet engine components and includes cases and fatigue critical rotating parts in the compressor and turbine sections. Machining nickel alloys represents a singular challenge due to the alloys¡¦ exceptional high temperature strength characteristics. This is marked by low material removal rates (MRR), long cycle times and high tooling costs. Our program will ...

Modern military and commercial airframes are comprised of aluminum, titanium and fiber reinforced composites mated together with rivets inserted in tens of thousands of pre-drilled holes. Drilling in assembly operations is performed on components made from stack-ups of composites, aluminum and titanium. Problems associated with hole quality, tool life and interlayer burrs are pervasive and result ...

THIS PROPOSAL OUTLINES A SIMPLE YET ACCURATE APPROACH TO MEASURING THE POSITION AND ORIENTATION OF A ROBOT. THE MECHANISM CAN BE USED TO MAKE BOTH STATIC AND DYNAMIC MEASUREMENTS. TWO VERSIONS OF THE DESIGN ARE PROPOSED; THE FIRST VERSION HAVING HIGH ACCURACY OVER A SMALL WORK VOLUME,AND THE SECOND VERSION HAVING LOWER ACCURACY OVER A WORK VOLUME WHICH WOULD ALLOW POSE MEASUREMENT OVER THE ENTIRE ...