1/Ilim=(1/4 FDCo2){(l/S)+(lin/Sin)}based on the Faraday constant (F); a diffusion coefficient (D); an oxygen concentration (Co2); a bore area (S) of the gas diffusion bore; a bore length (l) in the axial direction of the gas diffusion bore; a distance (lin) in the internal space between the first electrode and the inner surface opposed thereto; an effective cross section (Sin) of the internal space; and an output current value (Ilim). This makes it possible to accurately sense and measure the oxygen concentration, even at low oxygen concentrations, and achieve easy producibility and cost reducibility."/> Limiting current type oxygen sensor and method of sensing and measuring oxygen concentrations using the same
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Limiting current type oxygen sensor and method of sensing and measuring oxygen concentrations using the same

机译:极限电流型氧气传感器以及使用其的感测和测量氧气浓度的方法

摘要

A limiting current type oxygen sensor having a gas diffusion mechanism comprising a gas diffusion bore and an internal space communicating with the gas diffusion bore for supplying a diffusion-rate-determined gas. The gas diffusion mechanism may be configured such that an oxygen concentration gradient within the internal space satisfies the expression:1/Ilim=(1/4 FDCo2){(l/S)+(lin/Sin)}based on the Faraday constant (F); a diffusion coefficient (D); an oxygen concentration (Co2); a bore area (S) of the gas diffusion bore; a bore length (l) in the axial direction of the gas diffusion bore; a distance (lin) in the internal space between the first electrode and the inner surface opposed thereto; an effective cross section (Sin) of the internal space; and an output current value (Ilim). This makes it possible to accurately sense and measure the oxygen concentration, even at low oxygen concentrations, and achieve easy producibility and cost reducibility.
机译:具有气体扩散机构的极限电流型氧气传感器,该气体扩散机构包括气体扩散孔和与该气体扩散孔连通的内部空间,用于供应由扩散率确定的气体。气体扩散机制可以被配置为使得内部空间内的氧浓度梯度满足以下表达式:<?in-line-formulae description =“ In-line Formulae” end =“ lead”?> 1 / I lim =(1/4 FDC < / I> o2 ){( l / S )+( l / S in )} <?in-line-formulae description =“在线公式” end =“ tail”?>基于法拉第常数(F);扩散系数(D);氧浓度(C o2 );气体扩散孔的孔面积(S);沿气体扩散孔的轴向的孔长(l);在第一电极和与其相对的内表面之间的内部空间中的距离(l in );内部空间的有效横截面(S in );和输出电流值(I lim )。这使得即使在低氧浓度下也可以准确地感测和测量氧浓度,并且实现容易的生产性和成本降低性。

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