Process for calibrating a gas sensor and for the subsequent use of the calibrated gas sensor

US10746712B2 · kind B2 · utility

Assignee

• DRÄGERWERK AG & CO. KGAA · DE

Inventors

• Matthias Martens · Reinfeld, DE
• Hans-Ullrich HANSMANN · Klein Barnitz, DE
• Kai EINECKE · Berkenthin, DE
• Rainer Buchner · Vejle, DK
• Hannes STURM · Ahrensburg, DE

Key dates

• Filing date: May 16, 2018
• Grant date: Aug 18, 2020
• Expiry date: Dec 1, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/0006
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A process for operating a gas sensor (10), which process includes a calibration of the gas sensor (10). A test gas (16) is drawn in via a pump (12) coupled with the gas sensor (10), whereby the test gas (16) is supplied to the gas sensor (10). Different volume flows are generated by the pump (12) and respective volume flow-dependent measured values (26) are detected by the pump (12). The volume flow-dependent measured values (26) are recorded together with the respective volume flow. A sensor control unit and a computer program functioning as a control program (48) are provided to implement the process.