Method for structural health monitoring using a smart sensor system
US7917311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2008 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Apr 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0258
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The structural health monitoring method of the present invention utilizes a sensor system to determine information about deformation, stress and/or damage in structural elements. The sensor system and the method employ at least one sensor which comprises a material having fully-reversible nonlinear elasticity. The method comprises associating at least one sensor including a material having fully-reversible nonlinear elasticity with a structural element in a manner whereby stress is transferred from said structural element to said sensor, propagating ultrasound through a portion of the sensor, receiving the ultrasound which has been propagated through at least a portion of the sensor and determining information about the structural element from attenuation and/or time of flight of said received ultrasound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.