System and method to monitor a thermal environment of a composite structure using a thermochromatic witness assembly
US9945735B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Sep 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/061
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided a system, a method, and a thermochromatic witness assembly to monitor a thermal environment of a composite structure. The thermochromatic witness assembly has a polymeric material and one or more thermochromatic probes mixed into the polymeric material to form a thermochromatic probe mixture. The thermochromatic probe mixture is applied to a transparent polymeric film, or is formed into the transparent polymeric film with a pressure sensitive adhesive (PSA) applied thereto, thus forming the thermochromatic witness assembly in a form of a thermochromatic applique. The thermochromatic applique is configured to be applied directly and continuously to a surface of the composite structure. The thermochromatic applique is further configured to monitor the thermal environment of the composite structure by detecting one or more temperatures and one or more times the surface of the composite structure is exposed to the thermal environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.