Oxygen content detection system and control method thereof

• Main Author: CHEN YUEXIN
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACHINE TOOLS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PRINTED CIRCUITS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

An oxygen content detection system includes a zirconia analyzer, an air source, a mass flow valve, and a first throttle valve. The zirconia analyzer comprises a signal processing device, a shell and a probe, the shell is connected to the signal processing device and is provided with a detection port configured to enable gas from the hearth to enter the containing cavity of the shell through the detection port; the probe is arranged in the containing cavity of the shell, one end of the probe is connected to the signal processing device, the probe is configured to detect the oxygen concentration in gas entering the containing cavity of the shell, and the signal processing device receives and processes the detection result of the probe to generate an oxygen concentration signal; the shell is further provided with a communicating hole in fluid communication with the containing cavity of the shell, and the air source is configured to be connected to the communicating hole through a connecting channel so as to inpu