公开(公告)号：US20030205485A1

公开(公告)日：2003-11-06

申请号：US10453350

申请日：2003-06-03

Applicant: Rosemount Analytical Inc.

Inventor： Chang-Dong Feng

IPC: G01N027/26

CPC classification number: G01N27/404

Abstract: A dissolved oxygen sensor having a cathode and anode immersed in an electrolyte is designed to provide a low background current in the sensor when a potential is applied to the cathode. The background current is maintained at a desired level by selecting the area and length of a channel or path of diffusion of residual oxygen in the electrolyte to the cathode. The area (A) of the diffusion channel in relation to its length (L) is selected to be at or below a selected ratio, A/L.

Abstract translation: 将阴极和阳极浸入电解质中的溶解氧传感器被设计成当向阴极施加电位时在传感器中提供低的背景电流。 通过选择电解质中残余氧扩散到阴极的通道或通道的面积和长度，将背景电流维持在期望的水平。 扩散通道相对于其长度（L）的面积（A）被选择为等于或低于所选择的比率A / L。