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

Claim 13:
14. An apparatus for measuring a concentration of a target gas, the apparatus comprising:
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; and
a processor configured to, in response to the target gas being introduced along with air into the gas sensor, monitor a change of the electric resistance of the sensing layer and determine 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 processor is further configured to approximate 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.