Low Value Capacitance Measurements for Capacitive Sensors – A Review

Sensors & Transducers

Rao TATAVARTI¹  Saurav PAUL²  Hardik NAGRECHA²  Prabhu RAMANATHAN²  Prateek JAIN²  Sudha RAMASAMY²  P. Arulmozhivarman³ 

[1] Gayatri VidyaParishad College of Engineering, Visakhapatnam, India;School of Electrical Engineering, VIT University, Vellore, India – 632014;School of Electronics Engineering, VIT University, Vellore, India;

关键词: Capacitance measurement;    Capacitive sensors;    Doubles differential principle;    RC phase delay and oscillator;   

DOI  :  

来源: DOAJ

【 摘 要 】

The novel results in the field of measurements of very small capacitance changes are presented. The operating principles like double differential principle, RC phase delay, charging and discharging, oscillator, capacitance to phase angle conversion used for measuring very small capacitance changes are discussed. The basic and most important parameters of measurements are dealt with measurement range, sensitivity, percentage error and applications where it can be used. The aim is to provide an elaborative summary on various methods and their parameters available for capacitance measurement.

【 授权许可】

Unknown