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Parasitic consideration for differential capacitive sensor

Che Mustapha, Nurul Arfah and Alam, A. H. M. Zahirul and Khan, Sheroz and Azman, Amelia Wong (2019) Parasitic consideration for differential capacitive sensor. Bulletin of Electrial Engineering and Informatics, 8 (3). pp. 798-807. ISSN 2089-3191 E-ISSN 2302-9285

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Abstract

Parasitic integration for a single supply differential capacitive sensing technique is presented in this paper. In real capacitive sensor measurement, parasitic impedance exists in its measurement. This paper objective is to study the effect of capacitive and resistive parasitic to the capacitive sensor circuit. The differential capacitive sensor circuit derivation theory 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. This capacitive sensor is expected to be used for energy harvesting application.

Item Type: Article (Journal)
Additional Information: 7837/74621
Uncontrolled Keywords: CVC; Differential capacitive sensing; Parasitic impedance; Results improvement; Sensor sensitivity
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Dr AHM Zahirul Alam
Date Deposited: 26 Sep 2019 08:54
Last Modified: 03 Oct 2019 09:11
URI: http://irep.iium.edu.my/id/eprint/74621

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