Process and device for revealing impact(s) received by a substra

Details Process and device for revealing impact(s) received by a substra Process and device for revealing impact(s) received by a substra

1991-05-31

1993-09-07

Alexander, Lyle A.

Chemistry: analytical and immunological testing

Process or composition for determination of physical state...

Surface area, porosity, imperfection, or alteration

73 1201, 73 82, 73844, 116200, 116203, 116206, G01N 3122, G01L 500

Patent

active

052428303

ABSTRACT:
A process and device for revealing impact(s) received by a substrate make use of a film capable of being deposited onto said substrate and consisting of a matrix in which are embedded microcapsules intended to be broken during the impact and thus to release product(s) which they enclose and which is (are) endowed with different photoluminenscence properties according to whether it is (they are) encapsulated or released into the matrix.

REFERENCES:
patent: 3657928 (1972-04-01), Melamed
patent: 4362645 (1982-12-01), Hof et al.
patent: 4424911 (1984-01-01), Resnick
Leung, K. P., et al., "Photoluminescence determination of the pressure and temperature of the shock wave induced by a picosecond laser pulse in the layered semiconductor GaSe", 8073B Physical Review B, vol. 31, No. 2, Jan. 15, 1985, Woodbury, N.Y., pp. 942-946.

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