| 摘要 |
PURPOSE:To regulate easily the output from a limit current type element for detecting oxygen concn. after assembly by providing plural output regulating holes in addition to a diffusion hole and closing the regulating holes after assembly of the element thereby specifying the output. CONSTITUTION:A limit current type element for detecting oxygen concentration is constituted of a solid electrolyte case 1 provided with a negative electrode 4, a positive electrode 5, etc., a sealing material 10, a ceramic cover body 4 provided with a diffusion hole 7 and plural output regulating holes 7', etc. The output of the limit current type element for detecting oxygen concn. is easily regulated after assembly by measuring the output of said element in the atm. air at a prescribed temp. by an ammeter after assembly, determining the difference thereof from a prescribed output, closing the holes 7' to decrease the output and packing a paste, etc. consisting of ceramics, glass, etc. into the holes 7' to be closed. |
