Sample-based gas quality control by means of raman spectroscopy

US11460407B2 · kind B2 · utility

Assignees

• Carl Zeiss Jena GmbH · DE
• Carl Zeiss Spectroscopy GmbH · DE

Inventors

• Michael Rode · Vancouver, US
• Alexandre Gatto · Jena, DE
• Arnaud Deparnay · Erfurt, DE
• Michael Helgert · Jena, DE

Key dates

• Filing date: Aug 2, 2018
• Grant date: Oct 4, 2022
• Expiry date: Jun 3, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2201/06113
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

For the purpose of gas quality monitoring, a spectroscopic examination of a gas sample from a space (10) to be monitored is carried out, e.g. by Raman spectroscopy. The spectroscopic examination yields a measurement spectrum extending over a wavelength range. A deviation of the measurement spectrum from at least one comparison sample (160) is then detected. Depending on the detected deviation, a gas quality warning (QW) is produced.