|
||||||
|
||||||
| Project Number | 127 |
| Date of Summary | June 30, 1990 |
| Subject | A Magneto-Optic Based Flaw Imaging Technique for Underwater Applications |
| Performing Activity | Sigma Research, Inc. |
| Principal Investigator | Mr. Gerald L. Fitzpatrick |
| Contracting Agency | U.S. Coast Guard |
| Estimated Completion | Completed |
| Description | This was a Joint Industry Project (JIP). The purpose of this project was to demonstrate the possibility of developing a magneto-optic technique for direct visualization of flaws in ferrous materials in a marine environment. The technique is based on the property of certain magneto-optic garnel films to rotate the plane of polarization of an incident, linearly polarized light wave. This technique can be used in a hand-held device or operated by an automated submersible for the inspection of offshore structures. Because such a device can observe the magnetic anomalies of flaws through considerable thickness of biofouling, the technique does not require full clearing of surfaces before inspection. |
| Progress | Completed |
Reports |
|
AA (
347 KB; 10 pages)
 |
Fitzpatrick, G. L., and Liem, R., Progress in Applying Magneto-Optic Detection Methods to Flaw Imaging, presented at the 42nd meeting of the Mechanical Failures Prevention Group, National Bureau of Standards, Gaithersburg, Maryland, September 15-17, 1987. |
|
AB (
1923 KB; 28 pages)
|
Fitzpatrick, G. L., A New Magneto-Optic Based Flaw Imaging Device for Underwater Applications, Phase I Final Report, SIGMA Research, Redmond, Washington, February 1988. |
|
AC (
2468 KB; 31 pages)
|
A New Magneto-Optic Based Flaw Imaging Device for Underwater Application, Failure Analysis Associates, Redmond, Washington, January, 1992 |
|
Privacy | Disclaimers | Accessibility | Topic Index | FOIA Last Updated: 04/15/2008, 05:45 AM
|
|
