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Capacitive Contact Sensor on an Elastic Polymer Sheet

Institute for Microelectronics and Microsensors, Johannes Kepler University Linz, 4020 Linz, Austria
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Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018.
Proceedings 2018, 2(13), 1515; https://doi.org/10.3390/proceedings2131515
Published: 13 December 2018
(This article belongs to the Proceedings of EUROSENSORS 2018)
There is an increasing need for embedded sensors integrated into parts and mechanical components, which are often polymer based. We investigated a solution to print capacitive sensors onto elastic polymer sheets to monitor the physical contact with other adjacent components. The capacitive sensors are oriented in an array across the surface of said sheet to monitor the contact and the distance to a neighboring electrically conductive object. In the particularly investigated setup, the sheet is embedded between to metallic (aluminum) plates and the capacitance of the sensor is changed due to the compression of the dielectric material between the interdigital fingers constituting the sensor.
Keywords: printed sensors; embedded sensors; printed electronics; printed interdigital sensor; printed capacitive sensor; printed pressure sensor printed sensors; embedded sensors; printed electronics; printed interdigital sensor; printed capacitive sensor; printed pressure sensor
MDPI and ACS Style

Enser, H.; Offenzeller, C.; Knoll, M.; Hilber, W.; Jakoby, B. Capacitive Contact Sensor on an Elastic Polymer Sheet. Proceedings 2018, 2, 1515.

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