Capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement

The primary application of this work is to design and develop a reliable capacitance sensing system for measuring very small capacitive changes at low frequencies for human interface application. The sensing system is applicable in monitoring and characterizing human body movement. The interface cir...

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Main Authors: Arshad, Atika, Tasnim, Rumana, Alam, A.H.M Zahirul, Khan, Sheroz
Format: Proceeding Paper
Language:English
English
Published: Institute of Electrical and Electronics Engineers Inc. 2016
Subjects:
Online Access:http://irep.iium.edu.my/58731/
http://irep.iium.edu.my/58731/1/58731_Capacitance-to-voltage%20converter%20design_complete.pdf
http://irep.iium.edu.my/58731/2/58731_Capacitance-to-voltage%20converter%20design_scopus.pdf
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author Arshad, Atika
Tasnim, Rumana
Alam, A.H.M Zahirul
Khan, Sheroz
author_facet Arshad, Atika
Tasnim, Rumana
Alam, A.H.M Zahirul
Khan, Sheroz
author_sort Arshad, Atika
building IIUM Repository
collection Online Access
description The primary application of this work is to design and develop a reliable capacitance sensing system for measuring very small capacitive changes at low frequencies for human interface application. The sensing system is applicable in monitoring and characterizing human body movement. The interface circuit measures very small capacitive variation. A number of capacitive values have been set in the proposed system and the produced capacitance variations have been measured for verifying the possibility to characterize the presence/absence of human bodies. A variation in capacitance results in variation on the output voltage. Based on change in the voltage conclusion can be made regarding the presence/absence state of the human body. The sensing method is based on the fundamental principle of capacitance changes that is produced by the interaction of a human body with capacitive sensors. Different human body will exhibit different capacitance due to their height, weight and so on; giving each person distinctive identification. Primary simulation results show that the measurement of little capacitance variation using an interface circuit is precise and linear. The simulation results conclude that a very small capacitive variation can be detected using the developed capacitive sensing method. When a human body enters in the vicinity area right above the sensor, a variation in capacitance as well as output voltage can be observed.
first_indexed 2025-11-14T16:48:51Z
format Proceeding Paper
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institution International Islamic University Malaysia
institution_category Local University
language English
English
last_indexed 2025-11-14T16:48:51Z
publishDate 2016
publisher Institute of Electrical and Electronics Engineers Inc.
recordtype eprints
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spelling iium-587312017-10-11T02:50:20Z http://irep.iium.edu.my/58731/ Capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement Arshad, Atika Tasnim, Rumana Alam, A.H.M Zahirul Khan, Sheroz QP Physiology TK Electrical engineering. Electronics Nuclear engineering The primary application of this work is to design and develop a reliable capacitance sensing system for measuring very small capacitive changes at low frequencies for human interface application. The sensing system is applicable in monitoring and characterizing human body movement. The interface circuit measures very small capacitive variation. A number of capacitive values have been set in the proposed system and the produced capacitance variations have been measured for verifying the possibility to characterize the presence/absence of human bodies. A variation in capacitance results in variation on the output voltage. Based on change in the voltage conclusion can be made regarding the presence/absence state of the human body. The sensing method is based on the fundamental principle of capacitance changes that is produced by the interaction of a human body with capacitive sensors. Different human body will exhibit different capacitance due to their height, weight and so on; giving each person distinctive identification. Primary simulation results show that the measurement of little capacitance variation using an interface circuit is precise and linear. The simulation results conclude that a very small capacitive variation can be detected using the developed capacitive sensing method. When a human body enters in the vicinity area right above the sensor, a variation in capacitance as well as output voltage can be observed. Institute of Electrical and Electronics Engineers Inc. 2016-03 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/58731/1/58731_Capacitance-to-voltage%20converter%20design_complete.pdf application/pdf en http://irep.iium.edu.my/58731/2/58731_Capacitance-to-voltage%20converter%20design_scopus.pdf Arshad, Atika and Tasnim, Rumana and Alam, A.H.M Zahirul and Khan, Sheroz (2016) Capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement. In: IEEE International WIE Conference on Electrical and Computer Engineering, WIECON-ECE 2015, 19-20 Dec. 2015, Bangladesh University of Engineering and Technology (BUET)Dhaka. http://ieeexplore.ieee.org/document/7444012/ 10.1109/WIECON-ECE.2015.7444012
spellingShingle QP Physiology
TK Electrical engineering. Electronics Nuclear engineering
Arshad, Atika
Tasnim, Rumana
Alam, A.H.M Zahirul
Khan, Sheroz
Capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement
title Capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement
title_full Capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement
title_fullStr Capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement
title_full_unstemmed Capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement
title_short Capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement
title_sort capacitance-to-voltage converter design to measure small change in capacitance produced by human body movement
topic QP Physiology
TK Electrical engineering. Electronics Nuclear engineering
url http://irep.iium.edu.my/58731/
http://irep.iium.edu.my/58731/
http://irep.iium.edu.my/58731/
http://irep.iium.edu.my/58731/1/58731_Capacitance-to-voltage%20converter%20design_complete.pdf
http://irep.iium.edu.my/58731/2/58731_Capacitance-to-voltage%20converter%20design_scopus.pdf