Efficient capacitance sensing for wireless health monitoring system.

This paper presents a low power capacitance to voltage converter (CVC) circuit using two differential amplifier circuits, two Schottky rectifier diodes constructed in symmetrical manner and combined with instrumentation amplifier circuits. The differential capacitance to voltage simulation work has...

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Main Authors:	Che Mustapha, Nurul Arfah, Alam, A. H. M. Zahirul, Khan, Sheroz, Azman, Amelia Wong
Format:	Article
Language:	English English
Published:	IIUM Journal Publication 2016
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://irep.iium.edu.my/53419/ http://irep.iium.edu.my/53419/ http://irep.iium.edu.my/53419/1/609-3201-1-PB.pdf http://irep.iium.edu.my/53419/7/53419_Efficient%20capacitance%20sensing%20for%20wireless%20health%20monitoring%20system_WoS.pdf

id	iium-53419
recordtype	eprints
spelling	iium-534192018-07-11T08:54:37Z http://irep.iium.edu.my/53419/ Efficient capacitance sensing for wireless health monitoring system. Che Mustapha, Nurul Arfah Alam, A. H. M. Zahirul Khan, Sheroz Azman, Amelia Wong TK Electrical engineering. Electronics Nuclear engineering This paper presents a low power capacitance to voltage converter (CVC) circuit using two differential amplifier circuits, two Schottky rectifier diodes constructed in symmetrical manner and combined with instrumentation amplifier circuits. The differential capacitance to voltage simulation work has been realized with cheap discrete components. Combination energy from solar, vibration and heat is expected to be used to source the capacitance circuit. Constant dc voltage of 3 V has been used to source the CVC circuit in this work. It is found by the simulation, the converter circuit consumes 3.9 mW of total power, operates at 40 kHz using 400 mV excitation signal. The circuit is able to detect changes of capacitance from 4 – 12.5 pF using reference capacitance of 5 pF. Sensitivity of 0.132 mV for 1 fF capacitance change has been observed in the circuit. This circuit is suitable for wireless health monitoring system. IIUM Journal Publication 2016-11 Article PeerReviewed application/pdf en http://irep.iium.edu.my/53419/1/609-3201-1-PB.pdf application/pdf en http://irep.iium.edu.my/53419/7/53419_Efficient%20capacitance%20sensing%20for%20wireless%20health%20monitoring%20system_WoS.pdf Che Mustapha, Nurul Arfah and Alam, A. H. M. Zahirul and Khan, Sheroz and Azman, Amelia Wong (2016) Efficient capacitance sensing for wireless health monitoring system. IIUM Engineering Journal, 17 (2). pp. 21-29. ISSN 1511-788X E-ISSN 2289-7860 http://journals.iium.edu.my/ejournal/index.php/iiumej/index
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Che Mustapha, Nurul Arfah Alam, A. H. M. Zahirul Khan, Sheroz Azman, Amelia Wong Efficient capacitance sensing for wireless health monitoring system.
description	This paper presents a low power capacitance to voltage converter (CVC) circuit using two differential amplifier circuits, two Schottky rectifier diodes constructed in symmetrical manner and combined with instrumentation amplifier circuits. The differential capacitance to voltage simulation work has been realized with cheap discrete components. Combination energy from solar, vibration and heat is expected to be used to source the capacitance circuit. Constant dc voltage of 3 V has been used to source the CVC circuit in this work. It is found by the simulation, the converter circuit consumes 3.9 mW of total power, operates at 40 kHz using 400 mV excitation signal. The circuit is able to detect changes of capacitance from 4 – 12.5 pF using reference capacitance of 5 pF. Sensitivity of 0.132 mV for 1 fF capacitance change has been observed in the circuit. This circuit is suitable for wireless health monitoring system.
format	Article
author	Che Mustapha, Nurul Arfah Alam, A. H. M. Zahirul Khan, Sheroz Azman, Amelia Wong
author_facet	Che Mustapha, Nurul Arfah Alam, A. H. M. Zahirul Khan, Sheroz Azman, Amelia Wong
author_sort	Che Mustapha, Nurul Arfah
title	Efficient capacitance sensing for wireless health monitoring system.
title_short	Efficient capacitance sensing for wireless health monitoring system.
title_full	Efficient capacitance sensing for wireless health monitoring system.
title_fullStr	Efficient capacitance sensing for wireless health monitoring system.
title_full_unstemmed	Efficient capacitance sensing for wireless health monitoring system.
title_sort	efficient capacitance sensing for wireless health monitoring system.
publisher	IIUM Journal Publication
publishDate	2016
url	http://irep.iium.edu.my/53419/ http://irep.iium.edu.my/53419/ http://irep.iium.edu.my/53419/1/609-3201-1-PB.pdf http://irep.iium.edu.my/53419/7/53419_Efficient%20capacitance%20sensing%20for%20wireless%20health%20monitoring%20system_WoS.pdf
first_indexed	2023-09-18T21:15:34Z
last_indexed	2023-09-18T21:15:34Z
_version_	1777411539487162368

Efficient capacitance sensing for wireless health monitoring system.

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