In-situ structural health monitoring, diagnostics and prognostics system utilizing thin piezoelectric sensors
US7024315B2 · kind B2 · utility
39Cited by
7References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Feb 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2694
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting a damaged feature within a structure includes embedding a plurality of thin piezoelectric ceramic sensors on the structure. A first sensor is excited so that the first sensor produces a responsive signal in the structure. The responsive signal is received at a second sensor. The presence or absence in the received responsive signal of at least one predetermined signal characteristic is determined, where the predetermined signal characteristic is related to existence of the damage feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.