Title :
Improving Dynamics of Glass pH Electrodes
Author :
Yang, Dae Ryook ; Lee, Seungjae ; Sung, Su Whan ; Lee, Jietae
Author_Institution :
Dept. of Chem. & Biol. Eng., Korea Univ., Seoul, South Korea
Abstract :
The glass pH electrode has a very large internal resistance and an internal capacitance, exhibiting a relatively large response time. For some applications, the response time needs be shortened. For this purpose, a method to reduce the response time of glass pH electrodes and to diagnose its performance is proposed.
Keywords :
chemical sensors; pH measurement; glass pH electrodes; internal capacitance; internal resistance; Capacitance; Capacitive sensors; Delay; Electrical resistance measurement; Electrodes; Equivalent circuits; Glass; Immune system; Time measurement; Voltage; Glass pH electrode; time constant; transient response;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2009.2030882
