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Measurement of sensitivity distribution map of a ferroelectret polymer film

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Measurement of sensitivity distribution map of a ferroelectret polymer film. / Rajala, Satu; Paajanen, Mika; Lekkala, Jukka.

In: IEEE Sensors Journal, Vol. 16, No. 23, 27.09.2016, p. 8517-8522.

Research output: Contribution to journalArticleScientificpeer-review

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Rajala, S, Paajanen, M & Lekkala, J 2016, 'Measurement of sensitivity distribution map of a ferroelectret polymer film', IEEE Sensors Journal, vol. 16, no. 23, pp. 8517-8522. https://doi.org/10.1109/JSEN.2016.2613876

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Rajala, Satu ; Paajanen, Mika ; Lekkala, Jukka. / Measurement of sensitivity distribution map of a ferroelectret polymer film. In: IEEE Sensors Journal. 2016 ; Vol. 16, No. 23. pp. 8517-8522.

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@article{16a24e0579984fa7ac538d3d1bb8876d,
title = "Measurement of sensitivity distribution map of a ferroelectret polymer film",
abstract = "ElectroMechanical Film (EMFi) is an electroactive ferroelectret polymer film with a special cellular structure. Sensitivity distribution maps of EMFi sensors were measured in this study. Seven EMFi sensors with evaporated gold electrodes, size 55 mm x 55 mm, were measured with a measurement grid spacing of 5 mm. The sensitivity is defined here as the charge generated by the EMFi sensor divided by the force applied to excite the sensor, and this is closely related to piezoelectric d33 coefficient. The sensitivity of EMFi was found to vary in different places of the sensors and between the measured sensors. This is presumably due to the relatively large gas voids and local corona breakdowns. The maximum and minimum sensitivities were found to vary around 30 {\%} from the measured average sensitivity value. Thermally stimulated current (TSC) analysis confirmed the results obtained in the sensitivity distribution map measurements.",
keywords = "Electromechanical sensors, measurement, polymer films",
author = "Satu Rajala and Mika Paajanen and Jukka Lekkala",
year = "2016",
month = "9",
day = "27",
doi = "10.1109/JSEN.2016.2613876",
language = "English",
volume = "16",
pages = "8517--8522",
journal = "IEEE Sensors Journal",
issn = "1530-437X",
publisher = "IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC",
number = "23",

}

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TY - JOUR

T1 - Measurement of sensitivity distribution map of a ferroelectret polymer film

AU - Rajala, Satu

AU - Paajanen, Mika

AU - Lekkala, Jukka

PY - 2016/9/27

Y1 - 2016/9/27

N2 - ElectroMechanical Film (EMFi) is an electroactive ferroelectret polymer film with a special cellular structure. Sensitivity distribution maps of EMFi sensors were measured in this study. Seven EMFi sensors with evaporated gold electrodes, size 55 mm x 55 mm, were measured with a measurement grid spacing of 5 mm. The sensitivity is defined here as the charge generated by the EMFi sensor divided by the force applied to excite the sensor, and this is closely related to piezoelectric d33 coefficient. The sensitivity of EMFi was found to vary in different places of the sensors and between the measured sensors. This is presumably due to the relatively large gas voids and local corona breakdowns. The maximum and minimum sensitivities were found to vary around 30 % from the measured average sensitivity value. Thermally stimulated current (TSC) analysis confirmed the results obtained in the sensitivity distribution map measurements.

AB - ElectroMechanical Film (EMFi) is an electroactive ferroelectret polymer film with a special cellular structure. Sensitivity distribution maps of EMFi sensors were measured in this study. Seven EMFi sensors with evaporated gold electrodes, size 55 mm x 55 mm, were measured with a measurement grid spacing of 5 mm. The sensitivity is defined here as the charge generated by the EMFi sensor divided by the force applied to excite the sensor, and this is closely related to piezoelectric d33 coefficient. The sensitivity of EMFi was found to vary in different places of the sensors and between the measured sensors. This is presumably due to the relatively large gas voids and local corona breakdowns. The maximum and minimum sensitivities were found to vary around 30 % from the measured average sensitivity value. Thermally stimulated current (TSC) analysis confirmed the results obtained in the sensitivity distribution map measurements.

KW - Electromechanical sensors

KW - measurement

KW - polymer films

U2 - 10.1109/JSEN.2016.2613876

DO - 10.1109/JSEN.2016.2613876

M3 - Article

VL - 16

SP - 8517

EP - 8522

JO - IEEE Sensors Journal

JF - IEEE Sensors Journal

SN - 1530-437X

IS - 23

ER -