Month: March 2020

Press Release

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Physical Sciences Inc. (PSI) has been awarded a research program from the U.S. Air Force, Wright-Patterson AFB, to develop a high throughput, non-destructive technology for characterizing the surface and the coatings of high temperature ceramic matrix composites (CMCs) used for hypersonic applications. At velocities above Mach 5, CMCs are exposed to high heat flux and wind shear and thus special post-manufacturing coatings are required to protect them from oxidation and ablation. Therefore, the characterization of CMC roughness and surface chemistry is very important during various phases of the manufacturing process.

PSI’s technology will combine the high resolution surface roughness measurement capability of Scanning Low Coherence Interferometry (SLCI) with the powerful surface chemistry characterization capability offered by Raman spectroscopy to perform non-destructive evaluation of CMC roughness and surface composition. This tool will enable timely detection of structural and chemical defects that may be corrected, resulting in substantial savings in fabrication costs. Currently, non-destructive evaluation techniques are available only for laboratory use and are not suitable for use during the manufacturing processes.

For more information, contact:

Dr. Nick Iftimia
Area Manager, Biomedical Optics Technology

iftimia@psicorp.com
Physical Sciences Inc.
Telephone: (978) 689-0003

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Physical Sciences Inc (PSI) has been awarded a program from the Defense Advanced Research Projects Agency (DARPA) (managed by the US Army) to enhance its ChemSIGMA early warning system, which provides a wide-area distributed detection network designed to persistently monitor for airborne chemical warfare agents and toxic industrial compounds.

ChemSIGMA is a physically accurate probabilistic framework for intelligent data fusion of responses from chemical point sensors in a distributed network. The capability uses DARPA’s SIGMA architecture to achieve data transmission and real-time execution of several algorithmic layers, as well as provide a user display interface with access to threat decisions and characterization. PSI’s enhanced ChemSIGMA capability will enable operational deployment in a greater range of environments, in addition to providing a greater detection capability. Specifically, this effort will enhance the sensitivity and contextual fusion capability of the ChemSIGMA system while implementing new features in compliance with deployment in increasingly difficult operational environments.

For more information, contact:

Dr. Bogdan Cosofret
Vice President, Detection Systems

cosofret@psicorp.com
Physical Sciences Inc.
Telephone: (978) 689-0003