| 摘要 |
PURPOSE:To secure the double-junction structure by mounting the plastic outer barrel doubling the protective cover over the composite electrode of the single junction and then providing the 2nd liquid junction part between the open end of the protective cover and the electrode. CONSTITUTION:Outer barrel/protective cover 7 of single-junction composite electrode 1 is made of the plastics in order to increase the shock resistance. At the same time, plastic-made cylindrical sealing packing 9 possessing the 2nd liquid junction part 8 is inserted between the lower end part of cover 7 and that of body 2. Thus the double-junction structure is realized to enhance the performance. At the same time, O-ring 17 is inserted to prevent the inside liquid from leaking out throuth the fastening part excepting alumina filter 8. Thus the inside liquid is led to outer barrel 7 from supply hole 10 via supply pipe 12. Thus the performance can be enhanced through the double-junction structure. |
