| abstract |
To provide an oxygen sensor that can operate at room temperature, has excellent long-term stability, and can be miniaturized. A first electrode that electrochemically oxidizes and reduces oxygen, a second electrode that allows a current to flow between the first electrode, and a third electrode for potential reference that serves as a reference for the first electrode, Comprising an ambient temperature molten salt in contact with the first, second and third electrodes as an electrolyte phase, generating a potential pulse between the first electrode and the third electrode, An oxygen sensor comprising means for calculating an oxygen concentration based on a current value flowing between the second electrode and the second electrode. [Selection] Figure 1 |