Patent · US Active

Optical measuring head for a duct gas monitoring system

US8274658B2 · kind B2 · utility

0Cited by

6References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Rikard Larking · Floda, SE
Peter Schachinger · Lindome, SE

Key dates

Filing date	Sep 15, 2009
Grant date	Sep 25, 2012
Priority date	—
Expiry date	Apr 14, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/8578
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An optical measuring head for a duct gas monitoring system is provided, the measuring head being mounted to an outer wall of a gas duct through which the duct gas flows. The measuring head has a longitudinal chamber which at one end opens into the gas duct and at the other end contains an active optical component. The chamber is flushed with a purge gas which, after flushing the chamber, is discharged into the gas duct. A gas line is installed between the chamber and interior of the gas duct at a point upstream of a discharge point and the purge gas is a branch-off of the duct gas.

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