Device for the IR-spectrometric analysis of a solid, liquid or gaseous medium

US7428051B2 · kind B2 · utility

Assignee

• Endress+Hauser Conducta Gesellschaft fuer Mess- und Regeltechnik mbH + Co. KG · DE

Inventors

• Camiel Heffels · Blankenloch, DE
• Dirk Steinmueller · Karlsruhe, DE
• Dick Scholten · Stuttgart, DE
• Peter Lindmueller · Oberkochen, DE

Key dates

• Filing date: Jul 18, 2003
• Grant date: Sep 23, 2008
• Expiry date: Dec 6, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N21/552
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a device for the IR-spectrometric analysis of a solid, liquid or gaseous medium. The device includes a process probe, which has a reflection element. The device additionally includes a linear variable filter, at least one detector element, and a control/evaluation unit. At least one light source is also provided, the light of which is coupled into the reflection element via a collimating optics. At least one optical waveguide having a light input section and a light output section is provided. The light is guided via the light output section of the optical waveguide into a defined region of the linear variable filter. The detector element and the linear variable filter are arranged movably relative to one another over approximately the length of the linear variable filter. The control/evaluation unit determines the spectrum of the medium on the basis of the measured values delivered from the detector element.