摘要 |
PURPOSE:To improve productivity of a limiting-current type oxygen sensor for measuring oxygen concentration in an atmosphere. CONSTITUTION:An oxygen ion conductive solid electrolyte plate 1 with a spiral spacer 3 formed on a side and electrode films 2a,2b formed on both sides is laminated in a recess formed by laminating a holder 7 on an insulator 10, and a seal plate 4 with a heating part 6 is further laminated. Both plates can be fixed to each other without shift, alignment is easy and productivity can be improved due to reduction in a process and time. On the other hand, electric conductivity between the electrode films 2a,2b together with the heating part 6 and lead films 9a,9b,9c,9d formed on the insulator 10 is coupled via conductive adhesive 11a,11b,11c,11d, thereby simply allowing electric conductivity and fixing and improving productivity. |