A sensitive nondestructive method to use scattered x-rays to detect and size defects from one side of the object is described. radiation scattered from a collimated x-ray beam can be detected to reveal internal inhomogeneities. a novel detector collimation slot provides increased detection… More

A combined holographic-infrared inspection method is proposed. the combination technique will provide more valuable interpretation information and more quantitative inspection results than either method used alone. a powerful new inspection approach for bonded assemblies such as composite structure… More

A new cross-correlation method developed for medical diagnosis and a new flat response acoustic emission transducer are brought together with the promise of an improved, nondestructive, ultrasonic method to characterize materials. the impulse response can yield valuable information about materials… More

A real-time stereo microradiographic inspection system is proposed with particular emphasis on the inspection of ceramics. the performance of ceramic components requires that small discontinuities be detected and evaluated. microradiography by projection magnification offers the promise of detecting… More

A reliable nondestructive testing (ndt) method to inspect spot welds in stainless steel will clear the way to increased use of these light-weight, high strength corrugated stainless steel spot welded panels in ship and other construction. an infrared method for inspection of stainless steel spot… More

Real-time x-ray imaging used for diagnostic studies and n nonde-feasibility for the inspection of spot welds in stain less steel. the infrared results will be compared to data for destructive tests of several spot welds thereby offering increased confidence in the inpection results. preliminary work… More

The amplitude of ultrasound reflected or scattered from a solid surface in a fluid depends on the relative acoustic impedances of the media and also on the surface roughness ofthe solid. a very smooth surface will tend to reflect a higher ultrasonic amplitude than a rough one. a rough surface will… More

We propose to obtain information about existing automated ultrasonic scanning systems within the dod community. the emphasis will be on data storage and retrieval methods used and will include information about the data format and storage medium. the information will be tabulated as to data record… More

A standards document of reference radiographs of aluminum welds is needed to minimize interpretation problems related to the acceptance of aluminum welds in military and civilian structures. the reference radiographs will allow the producer and the buyer to agree on a given graded reference… More

An improved laser generation and detection system utilizing fiber optic coupling to the inspection surface is proposed. the system uses advanced interferometer concepts and takes advantage of the remote transmission capabilities of the fiber optics to provide improved signal-to-noise capabilities in… More

An improved ultrasonic system useful for the field inspection of concrete structures is proposed. improvementsinclude a reliable laser pulse method to generate the ultrasonic signal and analysis of the return signal in termsof amplitude, time and frequency. a novel flat frequency response ultrasonic… More

A program is proposed to develop an infrared thermal inspection application for the examination of bare and coated fiberglass hull structures. prior work has demonstrated the applicability of the infrared approach to the inspection of this type of material. several techniqueswill be evaluated for… More

Army armament devices are controlled for safety and optimum performance by a complex fuze mechanism. fuzes are designed by computer aided design (cad), fabricated by hand, and transported separately from the explosive charge of the armament for safety. each fuze is inspected by x-radioscopy. the… More

Infrared thermal imaging combined with advanced image processing techniques and design for portability is proposed as a method for enhancing the detection of critical defects in composite structures. it is believed that the incorporation of advanced image processing techniques can substantially… More

The proposed Phase I program will result in a demonstration of three-dimensional imaging with images taken with the existing high energy x-ray inspection systems at the U.S. Army Yuma Proving Ground. These images will be processed so they can be presented as prompt-response stereo television images.… More

This work is directed at developing an improved x-ray imaging detector for high-energy radiotherapy applications and exploring its use as a two-dimensional dosimeter in-quantitative treatmentverification. A high-performance portal imaging system will be a key factor in reducing localizationproblems,… More

Improved neutron imaging methods, to couple with the new availability of non-reactor sources for neutron radiography, are needed to expand the use of this nondestructive testing method. this proposal addresses the development of improved scintillators for thermal (and cold) neutron imaging and the… More

The discovery of the large magnetostriction in Terbium-Dysprosium alloys at liquid nitrogen temperatures has created the possibility of constructing high performance transducers for Naval applications. Before such transducers are made this stris of the alloy with the proper crystalline orientation… More

Concrete is used extensively for building defense and civilian structures as it is highly damage resistant, inexpensive, durable and can be cast into any form. Concrete can be subjected to a variety of extremely large stress events. The survivability of concrete structures could be enhanced if the… More

An ultrasonic Rayleigh surface wave method is propose to determine residual stress depth profile in aluminum aircraft wheels. The Rayleigh wave method has several distinct advantages. The residual stress depth profile can be easily obtained by altering the penetration depth of the Rayleigh… More

A primary objective is the development of digital x-ray systems that can be used to minimize x-ray film and chemicals use at Air Force aircraft maintenance facilities. The review of existing and in-development x-ray systems will result in a meaningful comparison of technical capabilities and ease… More

The development of a man-portable infrared thermal inspection system for the detection of hidden corrosion under paint and other surface coatings in Naval vessel structure is proposed. The development effort will exploit the change in the thermal conductivity and heat capacity of a corroded… More

An ultrasonic Rayleigh surface wave method is proposed to evaluate residual stresses in composites. The Rayleigh wave method has several distinct advantages, including the ability to eliminate the effect of fiber orientation on the residual stress determination. Also, the Rayleigh wave approach… More

An ultrasonic method is proposed to determine the level of pre-tension in rails of the high speed test-track. The specific ultrasonic approach has the benefits of being able to perform measurements without the need to account for the texture in the sample and can be used on structures with… More

An ultrasonic Rayleigh surface wave method is proposed to evaluate residual stresses in composites. The Rayleigh wave method has several distinct advantages, including the ability to eliminate the effect of fiber orientation on the residual stress determination. Also, the Rayleigh wave approach… More

50240-98-I Inexpensive, Lightweight, Portable, Large Image Area, X-ray Display System, with Wireless Data Transmission Capability--Industrial Quality, Inc., 640 East Diamond Avenue, Suite C, Gaithersburg, MD 20877-5323; (301) 948-2460 Dr. Kenneth M. Gibbs, Principal Investigator Mr. Thomas S.… More

An advanced ultrasonic inspection system is proposed to locate and characterize defects in thick composite armor. The technique will detect characteristic signals to identify and evaluate defects in the material. The methodology has also an inherent large signal-to-noise ratio enhancement that… More

Not Available This exciting SBIR project will develop a real-time web browser client/server interface module and supporting client and server software for Collaborative Part Task Training (CPTT). The hardware module will interface multiple aircrew Control Display Units (CDU) and consoles used by… More