Design of the pH Meter Based on SCM-ADuC845
Rao Lian-zhou · Journal of Sanming University · 2009
The pH meter based on SCM-ADuC845 is described in this paper.To increase the Signal-to-Noise ratio,double high impedance differential input method is adopted.Temperature transducer DS18B20 is used to achieve auto-temperature compensation.The results show that the pH meter possesses high precision and high stability so that it can satisfy the requirement of the measurement extensively.