Thin, flexible, capacitive force sensors based on anisotropy in 3D-printed structures

Gerhard Jan Willem Wolterink; Remco G.P. Sanders; Gijs Krijnen

doi:10.1109/ICSENS.2018.8589584

Thin, flexible, capacitive force sensors based on anisotropy in 3D-printed structures

Gerhard Jan Willem Wolterink, Remco G.P. Sanders, Gijs Krijnen

Research output: Contribution to conference › Paper › Academic › peer-review

12 Citations (Scopus)

448 Downloads (Pure)

Abstract

Conductive 3D-printed structures made out of a carbon doped thermoplastic polyurethane (TPU) deposited by an FDM 3D-printer show a high inter-layer contact resistance. Due to this poor resistive coupling capacitive effects between layers become prominent. This effect can be used to create capacitive force sensors by depositing only two thin layers of material. In this paper we investigate the feasibility of such a 3D-printed force sensor. The change in capacitance due to the compression of the material caused by an applied force (0 N to 10 N) is measured using an LCR meter. The presented sensor con- cept has a high potential for implementation in biomedical and soft robotic applications since the sensor is thin and flexible because it is made from soft material.

Original language	English
DOIs	https://doi.org/10.1109/ICSENS.2018.8589584
Publication status	Published - 27 Dec 2018
Event	IEEE Sensors 2018 - Pullman New Delhi Aerocity, Delhi, India Duration: 28 Oct 2018 → 31 Oct 2018 http://ieee-sensors2018.org/

Conference

Conference	IEEE Sensors 2018
Country/Territory	India
City	Delhi
Period	28/10/18 → 31/10/18
Internet address	http://ieee-sensors2018.org/

Keywords

3D-Printing
Conductive
Flexible
Soft
Force
Sensor

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Wolterink - Thin, flexible, capacitive force sensors based on anisotropy in 3D-printed structuresAccepted author version, 684 KB

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AU - Wolterink, Gerhard Jan Willem

AU - Sanders, Remco G.P.

AU - Krijnen, Gijs

PY - 2018/12/27

Y1 - 2018/12/27

N2 - Conductive 3D-printed structures made out of a carbon doped thermoplastic polyurethane (TPU) deposited by an FDM 3D-printer show a high inter-layer contact resistance. Due to this poor resistive coupling capacitive effects between layers become prominent. This effect can be used to create capacitive force sensors by depositing only two thin layers of material. In this paper we investigate the feasibility of such a 3D-printed force sensor. The change in capacitance due to the compression of the material caused by an applied force (0 N to 10 N) is measured using an LCR meter. The presented sensor con- cept has a high potential for implementation in biomedical and soft robotic applications since the sensor is thin and flexible because it is made from soft material.

AB - Conductive 3D-printed structures made out of a carbon doped thermoplastic polyurethane (TPU) deposited by an FDM 3D-printer show a high inter-layer contact resistance. Due to this poor resistive coupling capacitive effects between layers become prominent. This effect can be used to create capacitive force sensors by depositing only two thin layers of material. In this paper we investigate the feasibility of such a 3D-printed force sensor. The change in capacitance due to the compression of the material caused by an applied force (0 N to 10 N) is measured using an LCR meter. The presented sensor con- cept has a high potential for implementation in biomedical and soft robotic applications since the sensor is thin and flexible because it is made from soft material.

KW - 3D-Printing

KW - Conductive

KW - Flexible

KW - Soft

KW - Force

KW - Sensor

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M3 - Paper

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Thin, flexible, capacitive force sensors based on anisotropy in 3D-printed structures

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