Witness Material and Method for Monitoring the Environmental History of an Object
AssigneeThe Boeing Company
InventorsGary E. Georgeson, Morteza Safai
Life of this patent
Estimating the term…
Abstract
A witness material for monitoring an environmental history of an object may include a material containing a dye of a type that fluoresces in response to actinic radiation in one or both of a shift in color and a change in intensity when subjected to a predetermined stress above a predetermined level; and the material forming a coating on one or more of an outer container for the object, an inner container for the object, a tape that is applied to an outer container for the object, a tape that is applied to an inner container for the object, a shrink wrap enclosing the object, an outer surface of the object, and an inner surface of the object.
Claims20
A witness material for monitoring an environmental history of an object, the witness material comprising:
- a material containing a dye of a type that fluoresces in response to actinic radiation in one or both of a shift in color and a change in intensity when subjected to a predetermined stress above a predetermined level;
- and
- the material forming a coating on one or more of an outer container for the object, an inner container for the object, a tape that is applied to an outer container for the object, a tape that is applied to an inner container for the object, a shrink wrap enclosing the object, an outer surface of the object, and an inner surface of the object.
A system using witness material for monitoring an environmental history of an object, the system comprising:
- a material containing a dye of a type that fluoresces in response to actinic radiation in one or both of a shift in color and a change in intensity when subjected to a predetermined stress above a predetermined level;
- the material forming a coating on one or more of an outer container for the object, an inner container for the object, a tape that is applied to an outer container for the object, a tape that is applied to an inner container for the object, a shrink wrap enclosing the object, an outer surface of the object, and an inner surface of the object;
- and
- a source of the actinic radiation, the source configured to direct the actinic radiation on the coating after a predetermined event.
A method for monitoring an environmental history of an object, the method comprising:
- providing a material containing a dye of a type that fluoresces in response to actinic radiation in one or both of a shift in color and a change in intensity when subjected to a predetermined stress above a predetermined level;
- and
- forming a coating of the material on one or more of an outer container for the object, an inner container for the object, a tape that is applied to an outer container for the object, a tape that is applied to an inner container for the object, a shrink wrap enclosing the object, an outer surface of the object, and an inner surface of the object.
Dependencies are inferred from the claim text.