Organic pressure sensing surfaces fabricated by lamination of flexible substrates

Marco Fattori; Sahel Abdinia; Eugenio Cantatore; Gernot Pauer; Barbara Stadlober; Herbert Gold; Josephine Socratous; Fabrizio Torricelli

doi:10.1109/TCPMT.2018.2799700

Organic pressure sensing surfaces fabricated by lamination of flexible substrates

Marco Fattori, Sahel Abdinia, Eugenio Cantatore, Gernot Pauer, Barbara Stadlober, Herbert Gold, Josephine Socratous, Fabrizio Torricelli

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

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Abstract

This paper presents the design and experimental characterization of large-area active matrixes on foil for pressure-sensing applications. Front-end circuits based on organic thin-film transistors on a flexible substrate are laminated with a foil hosting screen-printed PDVF-TrFE piezo sensors to create the complete flexible sensing systems with 6 × 10 sensing elements on a 16.5 cm × 27.5 cm area. After defining the specifications based on the application scenarios, and designing two different front-end matrixes (A and B), the performance of the sensing surface B has been investigated in simulation. Numerical results show a readout speed of 5 kframe/s and 78.6 dB maximum signal-to-noise ratio with impact forces up to 50 kN. Experiments made with a prototype based on front end A confirm that the system can correctly reconstruct the impact profile of forces up to 50 kN obtained in a drop tower setup. Measurements of the front end circuit B show an input equivalent noise of 451 μV _rms and a 5% settling time of 13.8 μs, both adequate for the specified applications.

Original language	English
Article number	8307231
Pages (from-to)	1159-1166
Number of pages	8
Journal	IEEE Transactions on Components, Packaging and Manufacturing Technology
Volume	8
Issue number	7
DOIs	https://doi.org/10.1109/TCPMT.2018.2799700
Publication status	Published - Jul 2018

Keywords

Flexible electronics
Force
large-area electronics
Mechanical sensors
Organic thin film transistors
organic thin-film transistor (OTFTs)
piezoelectric sensors
pressure sensing.
Sensor phenomena and characterization
Transmission line matrix methods
pressure sensing

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10.1109/TCPMT.2018.2799700

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title = "Organic pressure sensing surfaces fabricated by lamination of flexible substrates",

abstract = "This paper presents the design and experimental characterization of large-area active matrixes on foil for pressure-sensing applications. Front-end circuits based on organic thin-film transistors on a flexible substrate are laminated with a foil hosting screen-printed PDVF-TrFE piezo sensors to create the complete flexible sensing systems with 6 × 10 sensing elements on a 16.5 cm × 27.5 cm area. After defining the specifications based on the application scenarios, and designing two different front-end matrixes (A and B), the performance of the sensing surface B has been investigated in simulation. Numerical results show a readout speed of 5 kframe/s and 78.6 dB maximum signal-to-noise ratio with impact forces up to 50 kN. Experiments made with a prototype based on front end A confirm that the system can correctly reconstruct the impact profile of forces up to 50 kN obtained in a drop tower setup. Measurements of the front end circuit B show an input equivalent noise of 451 μV rms and a 5% settling time of 13.8 μs, both adequate for the specified applications. ",

keywords = "Flexible electronics, Force, large-area electronics, Mechanical sensors, Organic thin film transistors, organic thin-film transistor (OTFTs), piezoelectric sensors, pressure sensing., Sensor phenomena and characterization, Transmission line matrix methods, pressure sensing",

author = "Marco Fattori and Sahel Abdinia and Eugenio Cantatore and Gernot Pauer and Barbara Stadlober and Herbert Gold and Josephine Socratous and Fabrizio Torricelli",

year = "2018",

month = jul,

doi = "10.1109/TCPMT.2018.2799700",

language = "English",

volume = "8",

pages = "1159--1166",

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AU - Fattori, Marco

AU - Abdinia, Sahel

AU - Cantatore, Eugenio

AU - Pauer, Gernot

AU - Stadlober, Barbara

AU - Gold, Herbert

AU - Socratous, Josephine

AU - Torricelli, Fabrizio

PY - 2018/7

Y1 - 2018/7

N2 - This paper presents the design and experimental characterization of large-area active matrixes on foil for pressure-sensing applications. Front-end circuits based on organic thin-film transistors on a flexible substrate are laminated with a foil hosting screen-printed PDVF-TrFE piezo sensors to create the complete flexible sensing systems with 6 × 10 sensing elements on a 16.5 cm × 27.5 cm area. After defining the specifications based on the application scenarios, and designing two different front-end matrixes (A and B), the performance of the sensing surface B has been investigated in simulation. Numerical results show a readout speed of 5 kframe/s and 78.6 dB maximum signal-to-noise ratio with impact forces up to 50 kN. Experiments made with a prototype based on front end A confirm that the system can correctly reconstruct the impact profile of forces up to 50 kN obtained in a drop tower setup. Measurements of the front end circuit B show an input equivalent noise of 451 μV rms and a 5% settling time of 13.8 μs, both adequate for the specified applications.

AB - This paper presents the design and experimental characterization of large-area active matrixes on foil for pressure-sensing applications. Front-end circuits based on organic thin-film transistors on a flexible substrate are laminated with a foil hosting screen-printed PDVF-TrFE piezo sensors to create the complete flexible sensing systems with 6 × 10 sensing elements on a 16.5 cm × 27.5 cm area. After defining the specifications based on the application scenarios, and designing two different front-end matrixes (A and B), the performance of the sensing surface B has been investigated in simulation. Numerical results show a readout speed of 5 kframe/s and 78.6 dB maximum signal-to-noise ratio with impact forces up to 50 kN. Experiments made with a prototype based on front end A confirm that the system can correctly reconstruct the impact profile of forces up to 50 kN obtained in a drop tower setup. Measurements of the front end circuit B show an input equivalent noise of 451 μV rms and a 5% settling time of 13.8 μs, both adequate for the specified applications.

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KW - Sensor phenomena and characterization

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KW - pressure sensing

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Organic pressure sensing surfaces fabricated by lamination of flexible substrates

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