Process for monitoring and control of the operation of an analyz

Details Process for monitoring and control of the operation of an analyz Process for monitoring and control of the operation of an analyz

1996-10-15

2000-10-03

Grant, William

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

700108, 700 3, G06F 1900

Patent

active

061285447

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.

REFERENCES:
patent: 5008842 (1991-04-01), Nagai et al.
patent: 5191521 (1993-03-01), Brosilow
patent: 5206937 (1993-04-01), Goto
patent: 5327349 (1994-07-01), Hoste
patent: 5442562 (1995-08-01), Hopkins et al.
patent: 5708593 (1998-01-01), Saby et al.
patent: 5715181 (1998-02-01), Horst

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