Please use this identifier to cite or link to this item: doi:10.22028/D291-30885
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Title: Pressure monitoring inside a polymer tube based on a dielectric elastomer membrane sensor
Author(s): Seelecke, Stefan
Rizzello, Gianluca
Loew, Philipp
Editor(s): Bar-Cohen, Yoseph
Language: English
Title: Electroactive Polymer Actuators and Devices (EAPAD) XX
Pages: 8
Publisher/Platform: SPIE
Year of Publication: 2018
Title of the Conference: SPIE Smart Structures and Materials + Nondestructive Evaluation 2018
Place of the conference: Denver, Colorado, United States
Publikation type: Conference Paper
Abstract: Dielectric Elastomers (DE) represent an attractive technology for the realization of low cost and highly stretchable capacitive sensors. The novel contribution of this work is the development of a nonintrusive DE sensor (DES) for polymer tubes, capable of measuring pressure levels inside the tube up to 60 bar. A novel solution is proposed to perform the measurement, in which a membrane DES is wrapped around the tube. While the tube expands due to high pressure, the DES capacitance increases accordingly. To perform system characterization, a test rig is designed to measure the expansion of a polymer tube while applying an external pressure. Several experiments are performed to obtain the tube characteristics at different pressure levels. Based on theoretical predictions and tube characterization, membrane DES are developed, manufactured, and then characterized. Finally, it is shown how the change in capacitance can be related to the pressure inside the tube, allowing to obtain the desired measurement. The performance of the device is assessed by means of several experiments.
DOI of the first publication: 10.1117/12.2296332
URL of the first publication:
Link to this record: hdl:20.500.11880/29108
ISBN: 978-1-5106-1685-1
Date of registration: 8-May-2020
Notes: Proceedings of SPIE ; volume 10594
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Systems Engineering
Professorship: NT - Prof. Dr. Stefan Seelecke
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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