FOURIER DOMAIN TECHNIQUE TO COMPUTE TOMOGRAPHY SCANNER WITH DIGITAL RADIOGRAPHY CAPABILITY

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$499,596.00
Award Year:
1994
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
18735
Agency Tracking Number:
18735
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
425 Barclay Blvd, Lincolnshire, IL, 60069
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
E Anne Sivers
(708) 634-6425
Business Contact:
() -
Research Institute:
n/a
Abstract
1We are proposing a computerized tomographic (CT) dimensional measurement system that will remedy two of the major problems experienced by current methods: the distortions caused by CT artifacts, and the blurring caused by the system point - spread function (PSF). The distortions resulting from data nonlinearity will be corrected by a calibration process acting upon the x-ray data. The blurring errors will be avoided by performing the measurement in the Fourier transform domain. This method can be used to perform automated, nondestructive inspection of crucial parts, such as turbine blades and rocket nozzles, for which substandard dimensions can cause failure. The preliminary system is expected to measure wall thicknesses down to 0.5 mm with better than 1% accuracy, but the method can be used to measure much thinner walls in small components.

* information listed above is at the time of submission.

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