| 摘要 |
PURPOSE:To improve electrical insulation characteristic of an ion-selecting electrode and reduce thickness of the said layer of an expensive material, by providing a dielectric layer on a supporting body having electrical insulation characteristic and forming 2 electrodes or more by forming a mechanically worked groove. CONSTITUTION:A dielectric layer 34, for instance, dielectric metal, dielectric oxidized metal, etc. is provided on an electric insulating supporting body 32. Next, a mechanically worked groove 38 is formed in the layer 34 with a cutting bite, etc. and the layer 34 is divided into electrically insulated sections 34a and 34b. Further, electrodes 40a, 40b are installed on the insulated sections 34a and 34b respectively. Next, an ion-selecting layer 36 is coated on the separated dielectric layer 34. Further, as the layer 36, a mixture of inert graphite, etc. and redox couple Fe(CN)6<3->/Fe(CN)6<4-> is employed. Consequently, as the dielectric layer is cut, the ion-selecting electrode is provided with better insulating characteristic and tighter contact with a mask for porous bridge installation covering the top surface is obtained. |
