Systems and methods for detecting variations in composite structures
US7812616B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2006 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Aug 12, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method to detect changes in composite structures using RF signal pattern data interpretation. An RF signal is transmitted from a composite material manufactured structure and a plurality of sensors are employed to measure the RF signal. The measured RF signal is compared to a stored baseline RF signal for the particular structure. Deviations in the measured RF pattern for the structure, or for a structurally-similar composite structure, are automatically analyzed to detect non-visually-detectable defects or other changes in the composite structure. A baseline RF signature is developed for a structure by transmitting a reference RF signal from the composite structure. RF signals are detected by a variety of methods, and the detected signals are compiled and translated into reference and/or test RF signal patterns for the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.