High-pressure oxygen sensor

• Main Author: SHEN JIYONG
• Format: Patent
• Language: Chinese; English
• Published: 04.06.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The present invention discloses a high-pressure oxygen sensor which comprises a four-hole ceramic tube and a thermocouple, the thermocouple is installed in an inner core in the four-hole ceramic tube, a corundum tube is arranged on the periphery of the thermocouple, and a zirconium oxide sheet is installed on the outer side of the corundum tube through a sealing ring. The left side and the right side of the zirconium oxide sheet are connected with a zirconium oxide inner electrode and a zirconium oxide outer electrode respectively, and a movable jacking pipe is arranged on the right side of the zirconium oxide outer electrode. According to the invention, a movable double-electrode contact method is adopted in structure, so that the requirements that the lowest micro-aerobic 10-30 order of magnitude can be measured, the linear repetition precision can reach +/-0.2% and the reaction speed is 0.05 millisecond can be met, and the problem that the oxygen content cannot be monitored in a high-pressure environment i