| 摘要 |
PROBLEM TO BE SOLVED: To provide a sensor apparatus for measuring an oxygen and/or an air-fuel ratio and at least one other gas-state component in a gas mixture to be measured which has at least one sensor electronic device, at least one reference electrode which shows a constant oxygen partial pressure, and one gas sensor with at least two measurement determinations for an oxygen ion conductive solid electrolyte and for the gas to be measured, its use method, an apparatus and a method whereby additional measurement data can be obtained inexpensively in a method of the measurement with the use of the sensor. SOLUTION: In a measurement process, an electrode for measurement is driven in one operation form A based on an equal or different measurement principles. Then, the measurement principal is changed at least on one electrode for measurement in at least one other operation form, and the other gas-state component of the gas mixture to be measured is measured and determined in accordance with each measurement principal on at least one electrode for measurement. |
