Machine for weaving or winding a fiber texture and enabling anomalies to be inspected by image analysis
US9726616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Aug 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8472
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A machine for weaving or winding a fiber preform on a mandrel having an axis of rotation that is substantially horizontal and that serves to receive the preform, the machine having a plurality of cameras pointing towards the underside of the fiber preform in order to scan the hidden face of the fiber preform and acquire images of the hidden face; an image analysis module for processing these images of the hidden face of the fiber preform in a plurality of adjacent scan windows, and for extracting weaving patterns therefrom and comparing them with reference weaving patterns previously stored in the module; a motor for driving the mandrel in rotation about its axis of rotation; and a control unit for stopping rotation of the mandrel if the result of the comparison reveals a difference of appearance between the two weaving patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.