二氧化锆氧传感器的零电位

设计、制作了一套氧传感器及测试装置。通过在不同情况下测量其零电位,来研究传感器温度、内外电极温差、气体流量和电极对零电位的影响。并在此基础上进行了物理化学和电化学的理论分析,确定了原电池温度不均匀是影响零电位的主要因素。
关键词: 二氧化锆氧传感器; 零电位; 铂电极; 影响因素
Abstract : An oxygen sensor and test device was designed and fabricated. Under variable condition , the zero electric po2 tential was measured to investigate the influence of oxygen sensors temperature , difference in temperature between outer electrode and inner electrode , gas flux and electrode. Based on experimental data and theoretical analysis of physical
chemistry and electrochemistry ,it came to the conclusion that non2uniform cell temperature is the main source influencing the zero electric potential.
Key words : ZrO2 oxygen sensor ; zero electric potential(ZEP) ; platinum electrode ; influencing factors