Process for monitoring and control of the operation of an analyzer and of a manufacturing unit to which it is linked
US6128544A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1996 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Oct 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/274
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for monitoring and controlling a slave analyzer and a manufacturing unit linked to the slave analyzer, including the steps of a) feeding standard samples having a known characteristic to a master analyzer; b) generating master signals from the master analyzer based on the known characteristic of the standard samples; c) feeding the standard samples to the slave analyzer; d) generating slave signals from the slave analyzer based on the known characteristic of said standard samples; e) generating a transfer algorithm relating the slave signals to the master signals, the transfer algorithm being defined by parameters; f) periodically repeating steps c) through e); g) monitoring over time an indicator selected from the group consisting of one of the parameters and a function of at least two of the parameters; h) identifying a cause of alteration of the indicator based on a cause/effect diagram; and i) checking the slave analyzer and the manufacturing unit based on the cause of alteration of the indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.