A transparent strain sensor based on PDMS-embedded conductive fabric for wearable sensing applications

Anindya Nag; Roy B. V. B. Simorangkir; Elizabeth Valentin; Toni Bjorninen; Leena Ukkonen; Raheel M. Hashmi; Subhas Chandra Mukhopadhyay

doi:10.1109/ACCESS.2018.2881463

A transparent strain sensor based on PDMS-embedded conductive fabric for wearable sensing applications

Anindya Nag, Roy B. V. B. Simorangkir, Elizabeth Valentin, Toni Bjorninen, Leena Ukkonen, Raheel M. Hashmi, Subhas Chandra Mukhopadhyay

School of Engineering

Research output: Contribution to journal › Article › peer-review

74 Citations (Scopus)

Abstract

In this paper we present a new approach to realize flexible transparent strain sensors. It combines the use of transparent conductive fabric with polydimethylsiloxane (PDMS) through a simple and straightforward layer-by-layer assembly process. The conductive fabric is used to realize the transparent electrodes while the PDMS is utilized as both the substrate and encapsulation layers. As a concept demonstration, an interdigital capacitive sensor is designed and fabricated using the proposed approach. The fabricated sensor is then characterized in terms of its transparency and electro-mechanical nature. This is followed by the application of the sensor in several physiological sensing scenarios including the sensing of various body-part movements and tactile sensing. Apart from a high optical transparency (~70%), the sensor shows promising sensing results which validate the applicability of the proposed approach for realization of flexible and transparent strain sensors for wearable sensing applications.

Original language	English
Pages (from-to)	71020-71027
Number of pages	8
Journal	IEEE Access
Volume	6
DOIs	https://doi.org/10.1109/ACCESS.2018.2881463
Publication status	Published - 2018

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title = "A transparent strain sensor based on PDMS-embedded conductive fabric for wearable sensing applications",

abstract = "In this paper we present a new approach to realize flexible transparent strain sensors. It combines the use of transparent conductive fabric with polydimethylsiloxane (PDMS) through a simple and straightforward layer-by-layer assembly process. The conductive fabric is used to realize the transparent electrodes while the PDMS is utilized as both the substrate and encapsulation layers. As a concept demonstration, an interdigital capacitive sensor is designed and fabricated using the proposed approach. The fabricated sensor is then characterized in terms of its transparency and electro-mechanical nature. This is followed by the application of the sensor in several physiological sensing scenarios including the sensing of various body-part movements and tactile sensing. Apart from a high optical transparency (~70%), the sensor shows promising sensing results which validate the applicability of the proposed approach for realization of flexible and transparent strain sensors for wearable sensing applications.",

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AU - Nag, Anindya

AU - Simorangkir, Roy B. V. B.

AU - Valentin, Elizabeth

AU - Bjorninen, Toni

AU - Ukkonen, Leena

AU - Hashmi, Raheel M.

AU - Mukhopadhyay, Subhas Chandra

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A transparent strain sensor based on PDMS-embedded conductive fabric for wearable sensing applications

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