Patent ID: 11913932
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 30:
31. A method of measuring a concentration of a target gas by using a gas sensor comprising a sensing layer having an electric resistance that changes by an oxidation reaction or a reduction reaction between gas molecules and the sensing layer, the method comprising:
in response to the target gas being introduced along with the air into the gas sensor, monitoring a change of the electric resistance of the sensing layer; and
determining the concentration of the target gas based on a slope of an electric resistance change during a predetermined time period after the target gas is introduced along with the air into the gas sensor,
wherein the determining of the concentration of the target gas comprises approximating the change of the electric resistance as a sum of a first electric resistance change caused by the oxidation reaction and a second electric resistance change caused by the reduction reaction.