A high precision and linearity differential capacitive sensor circuit dedicated to bioparticles detection
作者： Ebrahim Ghafar-Zadeh , Mohamad Sawan , None
DOI: 10.1109/NEWCAS.2005.1496669
关键词:
摘要: The authors presented in this paper an accurate and simple topology circuit dedicated to measure very small percentage of differential capacitance variations. proposed is based on a charge-based measurement method (CBCM). simplified architecture linearity the are two main advantages required satisfy design criteria capacitive sensors array intended for bio-particles detection. simulation results give minimum measurable 7 aF 10 fF variation instead level 2 reported by recent literature.
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