Method and apparatus for monitoring and ensuring product quality
US5576967A · kind A · utility
2Cited by
10References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1993 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Dec 29, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C3/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a quality monitoring method it is proposed that in continuous operation a test signal be generated, digitized, logarithmized, followed by the calculation of a frequency distribution of the test signal amplitude. The frequency distribution can then be integrated in individual areas, the result for each area forming a feature of the test signal. The features of a test signal are combined into vectors, which can be used for a better evaluation of the quality of the production plant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.