초록 ▼

An oxygen concentration detector includes a one-end closed cylindrical oxygen sensing element having an inside electrode, outside electrode provided on the inner side and outer side respectively, an electrode protecting layer made up of ceramics porous member provided further outside the outside ele

An oxygen concentration detector includes a one-end closed cylindrical oxygen sensing element having an inside electrode, outside electrode provided on the inner side and outer side respectively, an electrode protecting layer made up of ceramics porous member provided further outside the outside electrode, and a trap layer 1 of ceramics porous member having a surface roughness of 20 to 100 mmm

대표청구항 ▼

An oxygen concentration detector for detecting oxygen concentration in a gas, comprising: an oxygen sensing element including inside and outside electrodes provided on an inner side and outer side thereof respectively and an electrode protecting layer made of ceramics porous member provided further

An oxygen concentration detector for detecting oxygen concentration in a gas, comprising: an oxygen sensing element including inside and outside electrodes provided on an inner side and outer side thereof respectively and an electrode protecting layer made of ceramics porous member provided further outside of said outside electrode; output pickup means electrically connected to said inner electrode on said inner side of said oxygen sensing element; a housing for accommodating said oxygen sensing element; and a trap layer of ceramics porous member having a surface roughness of 20 to 100 m10 point mean roughness measurement and provided at an outerperiphery of the said electrode protecting layer.