Testing device for testing a gas guide element

US10648963B2 · kind B2 · utility

Assignee

• DRÄGERWERK AG & CO. KGAA · DE

Inventors

• Hans-Ullrich HANSMANN · Klein Barnitz, DE
• Henning Gerder · Lübeck, DE

Key dates

• Filing date: Nov 20, 2017
• Grant date: May 12, 2020
• Expiry date: Nov 20, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/0008
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A testing device (1) is configured for testing a gas guide element (3). A control unit (70) carries out a sequence of steps with two operating states. A test gas (91) is delivered by a pumping device (7) through the gas guide element (3) to a remotely located measuring location (80) and is subsequently delivered from the remotely located measuring location (80) to the gas sensor system (5). Measured values (77) are detected and analyzed during the delivery from the remotely located measuring location (80) to the gas sensor system (5) by a sensor (6, 90), which indicates a state of flow in the gas guide element (3) or an operating state of the pumping device (7). Changes occurring in the measured values (77) during the delivery from the remotely located measuring location (80) to the gas sensor system (5) indicate the operational capability of the gas guide element (3).