Holographic TV Interferometer for Non - Destructive Testing, Детальна інформація

The contamination on spacecraft window. Interference picture of defect of external surface

of spacecraft window of type "fragment", tinned on station "MIR"

The hologram is a record from which one can obtain information about the geometry and optical properties of the object and the quality of the surface. All the processes and materials investigated by the interferometer can be calculated with the help of special program on computer. The process of isolating and numbering the skeletal lines on the interferogram is automated /4/.

Conclusion

Another field of the application of our interferometer is non-destructive testing in industry. For example, it may be used for testing parts of precision tools, products in microelectronics industry (semi-conductor plates),optical fibers, optical components, vibration control, for registering modulation of speckle patterns, etc.

The main result of this work was presented at The 4 International Workshop on Automatic Processing of Fringe Patterns, Bremen, Germany.

References

/1/ Gurevich, S.; Dunaev, N.; Konstantinov, V.; Pisarevskaya, S.; Chernykh, D.: Compact holographic device for testing of phisico- chemical processes under microgravity conditions. Proced. of Microgravity Science Simposium, (AIAA/IKI), Moscow (1991), 351-355.

/2/ Gurevich, S., Konstantinov V.,Chernykch D.: Interference- holography studies in space. Proc. SPIE, 1183(1989), 479-485.

/3/ Gurevich, S., Konstantinov, V., Relin, V., Babenko, V.: Optimization of the wavefront recording and reconstructing in real-time holographic interferometry. Proc. of SPIE, 3238(1997), 16-19.

/4/ Bat'kovich, V., Budenkova, O., Konstantinov, V., Sadov, O., Smirnova, E.: Determination of the temperature distribution in liquids and solids using holographic interferometry, Tech. Phys., 44(1999)6, 704-708.