Patent ID: 11885763
Assignee: ROHM CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 1:
2. The gas concentration measurement system according to claim 1, wherein
the limiting current-type gas sensor includes a plurality of limiting current-type gas sensor elements, wherein each of the plurality of limiting current-type gas sensor elements is a duplicate of the limiting current-type gas sensor element,
the current detector includes a plurality of current detecting elements corresponding to respective ones of the plurality of limiting current-type gas sensor elements,
the plurality of current detecting elements is configured to:
acquire a first plurality of limiting current values of the plurality of limiting current-type gas sensor elements when the first voltage is applied to the plurality of limiting current-type gas sensor elements; and
acquire a second plurality of limiting current values of the plurality of limiting current-type gas sensor elements when the second voltage is applied to the plurality of limiting current-type gas sensor elements, and

the circuitry is further configured to determine the difference between an average value of the second plurality of limiting current values and an average value of the first plurality of limiting current values.