A 1.35 m Long 0.18 gf Resolution Differential Capacitive Force Sensor for Contact Force Monitoring

Sangkuk Jeon; Jiyong Lee; Wonhyoung Ryu; Youngcheol Chae

doi:10.1109/TENCON.2018.8650386

A 1.35 m Long 0.18 gf Resolution Differential Capacitive Force Sensor for Contact Force Monitoring

Sangkuk Jeon, Jiyong Lee, Wonhyoung Ryu, Youngcheol Chae

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper introduces a 1.35 m long differential capacitive force sensor with a small form factor for a catheter integration. The differential force sensor is realized with two polydimethylsiloxane (PDMS) layers having two different rigidity inserted between flexible printed circuit board (FPCB) electrodes. To achieve the higher precision, we also propose the differential driving method which allows the higher driving voltage even in a low supply system, resulting in the higher SNR. By using the driving voltage of 18 Vp-p under 2 V supply system, the proposed sensor interface has accomplished SNR of 58.22 dB at 100 gf and the force error has reduced from 0.24 gf to 0.18 gf with the equivalent capacitance resolution of 22.2 aF. This work has achieved the state-of-art force resolution by using both the differential driving and C_P cancellation technique with a miniature sensor. The proposed sensor can be used for a real time contact force measurement during a catheter ablation or the stiffness detection.

Original language	English
Title of host publication	Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	889-892
Number of pages	4
ISBN (Electronic)	9781538654576
DOIs	https://doi.org/10.1109/TENCON.2018.8650386
Publication status	Published - 2018 Jul 2
Event	2018 IEEE Region 10 Conference, TENCON 2018 - Jeju, Korea, Republic of Duration: 2018 Oct 28 → 2018 Oct 31

Publication series

Name	IEEE Region 10 Annual International Conference, Proceedings/TENCON
Volume	2018-October
ISSN (Print)	2159-3442
ISSN (Electronic)	2159-3450

Conference

Conference	2018 IEEE Region 10 Conference, TENCON 2018
Country/Territory	Korea, Republic of
City	Jeju
Period	18/10/28 → 18/10/31

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering

Access to Document

10.1109/TENCON.2018.8650386

Cite this

Jeon, S., Lee, J., Ryu, W., & Chae, Y. (2018). A 1.35 m Long 0.18 gf Resolution Differential Capacitive Force Sensor for Contact Force Monitoring. In Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference (pp. 889-892). Article 8650386 (IEEE Region 10 Annual International Conference, Proceedings/TENCON; Vol. 2018-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TENCON.2018.8650386

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abstract = "This paper introduces a 1.35 m long differential capacitive force sensor with a small form factor for a catheter integration. The differential force sensor is realized with two polydimethylsiloxane (PDMS) layers having two different rigidity inserted between flexible printed circuit board (FPCB) electrodes. To achieve the higher precision, we also propose the differential driving method which allows the higher driving voltage even in a low supply system, resulting in the higher SNR. By using the driving voltage of 18 Vp-p under 2 V supply system, the proposed sensor interface has accomplished SNR of 58.22 dB at 100 gf and the force error has reduced from 0.24 gf to 0.18 gf with the equivalent capacitance resolution of 22.2 aF. This work has achieved the state-of-art force resolution by using both the differential driving and CP cancellation technique with a miniature sensor. The proposed sensor can be used for a real time contact force measurement during a catheter ablation or the stiffness detection.",

author = "Sangkuk Jeon and Jiyong Lee and Wonhyoung Ryu and Youngcheol Chae",

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Jeon, S, Lee, J, Ryu, W & Chae, Y 2018, A 1.35 m Long 0.18 gf Resolution Differential Capacitive Force Sensor for Contact Force Monitoring. in Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference., 8650386, IEEE Region 10 Annual International Conference, Proceedings/TENCON, vol. 2018-October, Institute of Electrical and Electronics Engineers Inc., pp. 889-892, 2018 IEEE Region 10 Conference, TENCON 2018, Jeju, Korea, Republic of, 18/10/28. https://doi.org/10.1109/TENCON.2018.8650386

A 1.35 m Long 0.18 gf Resolution Differential Capacitive Force Sensor for Contact Force Monitoring. / Jeon, Sangkuk; Lee, Jiyong; Ryu, Wonhyoung et al.
Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference. Institute of Electrical and Electronics Engineers Inc., 2018. p. 889-892 8650386 (IEEE Region 10 Annual International Conference, Proceedings/TENCON; Vol. 2018-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Jeon S, Lee J, Ryu W , Chae Y. A 1.35 m Long 0.18 gf Resolution Differential Capacitive Force Sensor for Contact Force Monitoring. In Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference. Institute of Electrical and Electronics Engineers Inc. 2018. p. 889-892. 8650386. (IEEE Region 10 Annual International Conference, Proceedings/TENCON). doi: 10.1109/TENCON.2018.8650386

A 1.35 m Long 0.18 gf Resolution Differential Capacitive Force Sensor for Contact Force Monitoring

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