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US 2026/0194503 A1Published application
Gas Detection System with Enhanced Selectivity
AssigneeIndustry-Academic Cooperation Foundation, Yonsei University
InventorsKyu Hyoung LEE, Min Young KIM, Chul Oh PARK, Ha Eun CHOA
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Abstract
The present disclosure relates to a gas sensing method with enhanced selectivity. Specifically, the present disclosure relates to a gas sensing method for more accurately distinguishing various types of gases through a process of analyzing a correlation of two or more kinetic or static parameters from a temperature-dependent resistance change of a gas sensor according to two or more temperature conditions by changing the temperature of a captured external gas via a temperature control device.
Claims10
A gas sensing method comprising:
- i) capturing an external gas;
- ii) measuring a resistance value (Ro) of a gas sensor under a base gas condition to stabilize the gas sensor;
- iii) measuring resistance values (Rg) of the gas sensor under two or more temperature conditions with different temperatures by changing a temperature of the external gas;
- iv) calculating ratios (Rg/Ro) of the resistance value of the gas sensor under the base gas condition to the resistance values of the gas sensor under the two or more temperature conditions with different temperatures, and then calculating two or more kinetic parameters or static parameters from the ratios (Rg/Ro);
- and v) determining a type of the external gas by comparing a correlation of the two or more kinetic or static parameters calculated in the operation iv) with a standard correlation of two or more kinetic or static parameters.
2 more elements
Dependencies are inferred from the claim text.