Abstract:
First inner gas holes 134a and first outer gas holes 144a of a gas sensor are formed so that the following conditions are satisfied: a first-inner-hole count Nin≧3, 0
Abstract:
The porous body satisfies at least one of the following three conditions; “the average value of multiple in-plane uniformity indices γx is 0.6 or greater, and the spatial uniformity index γ is 0.6 or greater”, “the percentage of the total value of volume of low-flow-velocity curved surface solids as to the total value of volume of multiple virtual curved surface solids is 20% or less, and the percentage of the total value of volume of high-flow-velocity curved surface solids as to the total value of volume of multiple virtual curved surface solids is 10% or less”, and “the percentage of the total value of volume of mid-diameter curved surface solids as to the total value of volume of multiple virtual curved surface solids is 60% or more”.