IMPROVED ULTRASONIC INSPECTION SYSTEM USING MULTIBIT DIGITAL SIGNAL CORRELATORS

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$460,210.00
Award Year:
1992
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
9819
Agency Tracking Number:
9819
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
413 E 61st St, Clarendon Hills, IL, 60514
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
J Saniie/m Volk/m Bilguta
(312) 325-8574
Business Contact:
() -
Research Institution:
n/a
Abstract
A MAJOR AND PRESSING PROBLEM IN NONDESTRUCTIVE EVALUATION (NDE) OF MATERIAL USING ULTRASOUND IS THE DETECTION OF MICROSTRUCTURAL ECHOES OF LOW SIGNAL-TO-NOISE RATIO (SNR). THE LOSS OF SIGNAL BY SCATTERING AND ABSORPTION IMPOSES A LIMIT ON THE DETECTION CAPABILITY OF ULTRASONIC SYSTEMS. THIS PROBLEM OFTEN ARISES IN EXAMINING COMPOSITES, CERAMICS, CAST COMPONENTS, WELDS OR ANY THICK SECTION OF MATERIALS. ONE METHOD OF OBTAINING HIGH SNR IS THE APPLICATION OF A CORRELATION RECEIVING SYSTEM. IN PHASE I OF THIS RESEARCH PROPOSAL, WE PROPOSE TO DEVELOP AND EVALUATE AN ULTRASONIC INSPECTION SYSTEM USING GOLAY CODES AND MULTIBIT SIGNAL CORRELATORS. THIS SYSTEM TRANSMITS LARGE TIME-WIDTH RADOM CODES AND ACHIEVES PULSE COMPRESSION THROUGH THE CORRELATOR WHICH RESULTS IN TREMENDOUS SNR. THE HARDWARE DESIGN WILL INCLUDE FEATURES TO EASE INTERFACING THE CORRELATOR SYSTEM WITH THE PC-BASED WORKSTATION FOR POST-PROCESSING THE ACQUIRED DATA. IT IS OUR OBJECTIVE TO EVALUATE THE ABILITY OF THE CORRELATOR TO CHARACTERIZE THE STRUCTURE OF COMPOSITES AND OTHER MATERIALS OF IMPORTANCE TO DOD.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government