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《Chinese Journal of Sensors and Actuators》 2009-11
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A Delta-Sigma Modulator with Non-Delay Integrator for Capacitance Detection

YAN Bo,ZENG Wei,GAO FengNational Microanalysis Center,Fudan University,Shanghai 200433,China  
This paper introduces a Delta-Sigma modulator with non-delay integrator for capacitance detection,which reduces the leak charge by integrating and sampling simultaneously instead of taking them separately in most occasions.This structure can greatly improve the performance of Delta-Sigma modulator using in small capacitance detection.The end of this paper shows the simulation results of a 2nd order modulation which achieve a great increase ability in detecting SNR(Signal to Noise Ratio)for ultra small capacitance and a larger dynamic range in application.
【CateGory Index】: TP212
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Chinese Journal Full-text Database 2 Hits
1 WANG Ling*,LIU Jun,SHI Yun-bo(National Key Lab for Electronic Measurement and Technology,North university of China,Taiyuan 030051,China);Design of Differential Capacitance Detection Circuit[J];传感技术学报;2006-06
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Chinese Journal Full-text Database 7 Hits
1 WEN Xingxi;LI Xin'e;WANG Meilin;National Key Laboratory for Electronic Measurement Technology,North University of China;Key Laboratory of Instrumentation Science and Dynamic Measurement,North University of China;;Design of Light Trigger Electronic Manometer[J];传感技术学报;2014-05
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6 YAN Bo,ZENG Wei,GAO FengNational Microanalysis Center,Fudan University,Shanghai 200433,China;A Delta-Sigma Modulator with Non-Delay Integrator for Capacitance Detection[J];传感技术学报;2009-11
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【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 LIU Wan-guo1, YANG Gong-liu1, XIAO Qian2 (1. Tianjin Navigation Instrument Research Institute, Tianjin 300131, China; 2. School of Automation, Harbin Engineering University, Harbin 150001, China);Application of Small Capacitance Measuring Techniques in Gravimeter[J];中国惯性技术学报;2005-01
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