| 摘要 |
<p>An electrochemical device for detecting a measurement fluid, which includes a planar solid electrolyte body (54), a first electrode (58) formed on the planar solid electrolyte body (54) and substantially exposed to the measurement fluid, a second electrode (58) formed on the planar solid electrolyte body and substantially isolated from the measurement fluid, a porous layer (74) disposed in direct contact with the second electrode, and a device (92) for applying an electric current so as to flow from the second electrode to the first electrode. The device may further include a third electrode (62), and a fourth electrode (64) substantially directly exposed to the measurement fluid. In this case, the first and third electrodes are exposed to the measurement fluid through a thin flat space or porous layer having a predetermined diffusion resistance to the measurement fluid, and a current regulating device is connected between the third and fourth electrodes, for controlling an atmosphere adjacent to the first electrode. </p> |
