Experimental Investigation of Measurement Error in Networked Resistors Arrays Based on Zero Potential Method

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Abstract

This paper provides a comprehensive study on the zero potential method for restriction of the crosstalk-based measurement error in network resistor arrays. We introduce four circuits with different architectures based on the zero potential method to comparatively study the effect of the switches on-resistance on the measurement error. Moreover, the effect of the operational amplifiers with different specifications on the measurement error will be investigated. The results show that the measurement error introduced by the onresistance of the switches can be effectively suppressed by inserting a buffer between the sensing elements and the switches on each driven electrode, and utilizing the virtual ground of the trans-impedance amplifier on each scanned electrode. We will show that, the efficiency of the circuits on elimination of the measurement error may be improved by employing high precision operational amplifiers.

Keywords

Measurement error Resistor array Crosstalk Zero potential method Operational amplifier 

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Copyright information

© Korean Society for Precision Engineering and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Mechanical and Electrical EngineeringXi’an University of Architecture and TechnologyXi’an, ShaanxiChina
  2. 2.Shaanxi Key Laboratory of Nano-materials and TechnologyXi’an University of Architecture and TechnologyYanta Road, Xi’an, ShaanxiChina
  3. 3.Key Laboratory for Mechanical Manufacturing Systems EgineeringXi’an Jiaotong UniversityXi’an, ShaanxiChina

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