Aircraft structure testing device of the wire cutter type
US9020772B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2008 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Nov 20, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detection wire cutter including a conducting wire mechanically secured to a structure that is to be monitored. This wire is electrically powered at one end and at another end feeds back an electrical voltage corresponding to the power supplied, provided that the structure that is to be monitored has not undergone unacceptable mechanical damage. As an improvement, two arrays of wires extending over flat supports in two directions in space are proposed. Each array is powered by a distinct network electrical supply. The two networks extend in layers, with parallel wire portions. The position of a crack does not impede the passage of current between certain terminals, but certain other terminals will no longer receive any current because the crack has broken a network supply general connection between the connection of one wire and that of another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.