Single Supply Differential Capacitive Sensor with Parasitic Capacitance and Resistance Consideration

Che Mustapha, Nurul Arfah and Alam, A.H.M. Zahirul and Khan, Sheroz and Azman, Amelia Wong (2018) Single Supply Differential Capacitive Sensor with Parasitic Capacitance and Resistance Consideration. In: 7th International Conference on Computer and Communication Engineering 2018 (ICCCE 2018), Gombak, Kuala Lumpur.

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Abstract

A single supply differential capacitive sensing technique is presented in this paper with the focus of parasitic integration. In real application, any capacitive sensor should consider parasitic in its measurement. The aim of this paper is to analyze the effect of capacitive and resistive parasitic to the network circuit. The derivation theory of the differential capacitive sensor circuit is elaborated first. Then, comparison is made using simulation. Test was carried out using frequency from 40 kHz up to 400 kHz. Result is presented and have shown good linearity of 0.99984 at 300 kHz, R-squared value. Future application is expected to be used for capacitive sensor that is making use of energy harvesting application.

Item Type:	Conference or Workshop Item (Slide Presentation)
Uncontrolled Keywords:	differential capacitive sensing, Capacitance-toVoltage Converter (CVC), parasitic impedance
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2896 Production of electricity by direct energy conversion
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Dr Nurul Arfah Che Mustapha
Date Deposited:	11 Feb 2019 12:32
Last Modified:	03 Jul 2019 15:19
URI:	http://irep.iium.edu.my/id/eprint/69961

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