Gas sensor

US11193885B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Andreas Tortschanoff · Villach, AT
• Cristina Consani · Villach, AT
• Thomas Grille · Villach, AT
• Peter Irsigler · Ried im Innkreis, AT
• Christian Ranacher · Lienz, AT

Key dates

• Filing date: Feb 27, 2020
• Grant date: Dec 7, 2021
• Expiry date: Mar 4, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2201/0686
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In accordance with an embodiment, a gas sensor includes a substrate having a cavity for providing an optical interaction path; a thermal emitter configured to emit broadband IR radiation; a wavelength selective structure configured to filter the broadband IR radiation emitted by the thermal emitter; and an IR detector configured to provide a detector output signal based on a strength of the filtered IR radiation having traversed the optical interaction path.