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Polymers 2018, 10(8), 852; https://doi.org/10.3390/polym10080852

Embedded, Fully Spray-Coated Pressure Sensor Using a Capacitive Transducing Mechanism

Institute for Microelectronics and Microsensors, Johannes Kepler University Linz, 4040 Linz, Austria
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Received: 12 June 2018 / Revised: 26 July 2018 / Accepted: 30 July 2018 / Published: 1 August 2018
(This article belongs to the Special Issue Polymers: Design, Function and Application)
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Abstract

Embedding functional sensor layers directly into mechanical systems in heavy-duty surroundings facilitate the real-time monitoring of the system’s state. This work presents a fully-spray coated pressure sensor that is suitable for applications in the high pressure range. It is embedded into functionalized organic coatings that additionally act as a dielectric for the capacitive sensing mechanism. The sensitivity of the sensor, as well as its long-time stability, has been determined. Additionally, testing has been performed at elevated temperatures to determine the temperature dependent sensitivity that arises from the temperature dependence of the Young’s moduli. View Full-Text
Keywords: pressure sensor; embedded; spray-coated; additive manufacturing; high pressure; high temperature; capacitive; polymer composite; metal/organic pressure sensor; embedded; spray-coated; additive manufacturing; high pressure; high temperature; capacitive; polymer composite; metal/organic
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Offenzeller, C.; Knoll, M.; Jakoby, B.; Hilber, W. Embedded, Fully Spray-Coated Pressure Sensor Using a Capacitive Transducing Mechanism. Polymers 2018, 10, 852.

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