Nondestructive analysis of dispersion and loading of reinforcing material in a composite material
US5341436A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1992 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Nov 6, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N23/043
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A real-time radioscopy system produces an X-ray image of a sample of reinforced composite material or a manufactured part that has been molded from the reinforced composite material. By examining the statistics of the distribution of gray levels within the image, it is possible to measure the local and average reinforcing material content (loading) as well as how well the reinforcing material is distributed (the reinforcing material dispersion). The mean gray level is used to determine the local loading of the reinforcing material, which is measured as a function of position in the sample or part using this technique. In addition, an average value of the loading may be obtained. The standard deviation of the gray level image correlates with the quality of dispersion of the reinforcing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.