| 摘要 |
PROBLEM TO BE SOLVED: To enhance safety for an electrochemical sensor. SOLUTION: An electrolyte solution 12 is stored inside an inner body 8. Upper opening parts of an outer body 2 and the inner body 8 are closed by a boss 16 comprising an insulating material, and the boss 16 is fixed with an adhesive 22. A pressure regulating hole 14 is formed in the boss 16 from its outside, and an enlarged opening part 15 communicating with the hole 14 is formed from its outside. Three sheets of water-absorbing sheets 16 are stored in the opening part 15. A sealing film 20 comprising a PTFE film is fixed by thermal fusion in a face of the electrolyte slution 12 side of the boss 16 to cover the opening part 15. When the electrolyte solution 12 flows out in the direction of the hole 14 because of breakage of the sealing film 20 and the like, the solution 12 is absorbed with a water-absorbing member 18 to prevent the electrolyte solution 12 from leaking to an outside of a sensor. |
