Patent · US Active

Method and analyzer for determining a measured value of a measured variable of process automation technology

US9651479B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

Endress+Hauser Conducta GmbH+Co. KG · DE

Inventors

Edin Andelic · Hagen, DE
Ralf Bernhard · Stuttgart, DE
Michael Littmann · Bietigheim-Bissingen, DE

Key dates

Filing date	Apr 7, 2015
Grant date	May 16, 2017
Priority date	—
Expiry date	Aug 6, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/173845
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and analyzer for determining a measured value of a measured variable of process automation technology in a liquid or gaseous medium by means of an optical sensor includes taking a sample of the medium; mixing the sample with one or more reagents; supplying an emitter of the optical sensor with an exciter signal for producing sent light, wherein the sent light by interaction with the mixed sample is converted into received light as a function of the measured variable; producing a receiver signal by means of a receiver of the optical sensor from the converted, received light; and determining the measured value based on the receiver signal and a calibration function, which includes a term which takes aging of the reagents into consideration.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.