Optics: measuring and testing – Material strain analysis
Reexamination Certificate
2007-12-11
2007-12-11
Lauchman, Layla G. (Department: 2877)
Optics: measuring and testing
Material strain analysis
C356S035000, C073S800000
Reexamination Certificate
active
10922483
ABSTRACT:
A color switchable stress/fracture sensor in combination with a structure. The combination apparatus includes a structure requiring stress and/or fracture detection, and at least one elasto-mechanoluminescent material at least partially dispersed in and/or on the structure and/or in a coating on the structure. The combination apparatus further includes at least one fracto-mechanoluminescent material at least partially dispersed in and/or on the structure and/or in a coating on the structure, and at least one fiber optic cable positioned to receive and transmit sufficient light emitted from the elasto-mechanoluminescent material due to stress applied to the elasto-mechanoluminescent material and to receive and transmit sufficient light emitted from the fracto-mechanoluminescent material due to fracture of the fracto-mechanoluminescent material.
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Mathur Veerendra K.
Price Jack L.
Barrow Jane
The United States of America as represented by the Secretary of
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