USA flag logo/image

An Official Website of the United States Government

HETERODYNE SHEARING INTERFEROMETRY FOR SURFACE PROFILE

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
12289
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
12289
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
BIO-IMAGING RESEARCH, INC.
425 BARCLAY BOULEVARD LINCOLNSHIRE, IL 60069
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: HETERODYNE SHEARING INTERFEROMETRY FOR SURFACE PROFILE
Agency / Branch: DOD / ARMY
Contract: N/A
Award Amount: $49,290.00
 

Abstract:

WE PROPOSE TO DEVELOP AND VERIFY IN THIS PHASE I PROGRAM A TECHNIQUE THAT WILL ACCURATELY AND REPEATABLY MEASURE SURFACE PROFILES AND DISTANCES BETWEEN A TEST OBJECT AND DETECTORS USING THE SHEARING HETERODYNE INTERFEROMETRY TECHNIQUE. THE TECHNIQUE IS BASED ON SHEARING HETERODYNE INTERFEROMETRY WITH A FREQUENCY MODULATED LASER DIODE USING THE FOUR-BUCKET-INTEGRATING TECHNIQUE. IT CAN BE USED TO DETERMINE DEPTH PROFILES VARYING FROM THE SUBMICRON TO CENTIMETER RANGE WITHOUT ANY CHANGE IN THE INSTRUMENT OR ITS COMPONENTS. IN PHASE II THIS TECHNIQUE CAN BE IMPLEMENTED INTO A COMPACT INSTRUMENT THAT WILL PRIMARILY BE USED TO MEASURE DEPTH PROFILES, BUT CAN ALSO BE USED TO MEASURE THE INNER DIAMETER, THE OUT-OF-ROUND, AND THE TAPER OF A GUN BARREL. IN THE PROPOSED TECHNIQUE, THE INJECTION CURRENT OF THE LASER DIODE IS CONTINUOUSLY CHANGED TO INTRODUCE PHASE DIFFERENCES. A HIGH RESOLUTION CCD CAMERA WITH CORRECTED LINEARITY AND PIXEL-TO-PIXEL VARIATION IS USED FOR FRINGE DETECTION. THE MEASURED DATA IS STORED IN AN IBM PC WHICH WILL RUN SOFTWARE TO REDUCE NOISE AND INCREASE THE ACCURACY OF MEASUREMENTS. WE ANTICIPATED THAT THE ACCURACY AND REPEATABILITY OF THE MEASUREMENTS IN OUR LABORATORY WILL BE CLOSED TO ONE MICRON.

Principal Investigator:

Francois Zayek
7086346425

Business Contact:

Small Business Information at Submission:

Bio-imaging Research Inc
425 Barclay Blvd Lincolnshire, IL 60069

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No