Design of ispPAC-based Humidity Sensor Signal Processing Circuits

摘要

The widely used sensitive elements of humidity sensors can be divided into 3 types, i.e., resistor, capacitor, and electrolyte. Humidity sensors consisting of these sensitive elements have corresponding signal processing circuit unique to each type of sensitive elements. This paper presents an ispPAC (in-system programmable Programmable Analog Circuit)-based humidity sensor signal processing circuit designed with software method and implemented with in-system programmable simulators. Practical operation shows that humidity sensor signal processing circuits of this kind, exhibit stable and reliable performance.