| 摘要 |
Disclosed are a spacer-inserted dissolved oxygen sensor and an apparatus thereof. The sensor comprises a membrane for selectively permeating oxygen without permeation of liquid components, an electrode for producing a current change depending on an amount of oxygen permeable through the membrane, and a spacer positioned between the membrane and the electrode for axially permeating oxygen to the electrode. The spacer has a very closely spaced side structure, thus effectively decreasing side diffusion and having high resistance to span shift caused by impact. In addition, minute axial openings in the spacer are responsible for inducing axial flux of oxygen to the electrode. |
