ZHANG Xiaoshui¹, GU Ruiqin¹, LI Zhigang², ZHONG Kechuang¹

(1. Zhengzhou Winsen Electronics Technology Co., Ltd., Zhengzhou, Henan 450001; 

2. Henan Hanwei Electronics Co., Ltd., Zhengzhou, Henan 450001）

Abstract: The factors which influence the stability of the constant potential electrolysis sensor were analyzed. The size and uniformity of the catalyzer, the making method of the electrode and the concentration of the electrolyte, which influence the stability of the sensor, were introduced.

Key words: constant potential electrolysis sensor, long-term stability, catalyzer, electrode, electrolyte