| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a gas sensor element, simply manufacturing the gas sensor element having a desired output current and reduced in product irregularity, and also to provide the gas sensor element manufactured using the same, and a gas sensor having the gas sensor element built therein. <P>SOLUTION: The method for manufacturing the gas sensor element has: the reference measuring step of measuring a reference output current A1 and a reference diffusion distance L1; a post-grinding measuring step of measuring a post-grinding output current A2 and a post-grinding diffusion distance L2 after a diffusion resistance layer is ground; the constant calculating step of calculating a constant which calculates the inclination (a) and intercept (b) in the linear function expressed in the formula 1 approximating the relation between a post-grinding IL change ratio (y) and a diffusion distance change ratio (x), y=ax+b using the post-grinding IL change ratio (y) and diffusion distance change ratio (x) being the square root of the ratio of the reference output current A1 to the difference between the post-grinding output current A2 and the reference output current A1; the grinding amount calculating step of substituting the reference diffusion distance L1, a target IL change ratio (z), the inclination (a) and the intercept (b) for the formula 2, M=L1×[1-a/(z-b+a)] to calculate a target grinding amount M; and the grinding step. <P>COPYRIGHT: (C)2010,JPO&INPIT |
