Automatic calibration and control system for a combined oxygen and combustibles analyzer
US4852384A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1986 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Apr 21, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4175
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automatic calibration and control system for a combined oxygen and combustibles analyzer comprises a process control computer which automatically calibrates a combined oxygen and combustibles analyzer. The computer initiates a calibration sequence through a mechanical unit which introduces calibration gases to the analyzer. The computer calculates a drift adjustment for both oxygen and combustibles and applies it to the incoming oxygen and combustibles signal from the analyzer to arrive at calibrated oxygen and combustibles signals. The system allows both oxygen and combustibles signals to be calibrated automatically and concurrently with minimal operator interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.