Articles | Volume 11, issue 1
https://doi.org/10.5194/jsss-11-51-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jsss-11-51-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Regular research article
| 
23 Feb 2022
Regular research article |
| 23 Feb 2022
| 23 Feb 2022
In situ analysis of hydration and ionic conductivity of sulfonated poly(ether ether ketone) thin films using an interdigitated electrode array and a nanobalance
Hendrik Wulfmeier
CORRESPONDING AUTHOR
Institute of Energy Research and Physical Technologies, Clausthal
University of Technology, 38640 Goslar, Germany
Niklas Warnecke
Institute of Energy Research and Physical Technologies, Clausthal
University of Technology, 38640 Goslar, Germany
Luca Pasquini
Aix-Marseille University, CNRS, Madirel (UMR
7246), site St Jérôme, Marseille, 13013, France
Holger Fritze
Institute of Energy Research and Physical Technologies, Clausthal
University of Technology, 38640 Goslar, Germany
Philippe Knauth
Aix-Marseille University, CNRS, Madirel (UMR
7246), site St Jérôme, Marseille, 13013, France
Related authors
Sebastian Schlack, Hendrik Wulfmeier, and Holger Fritze
J. Sens. Sens. Syst., 11, 299–313, https://doi.org/10.5194/jsss-11-299-2022, https://doi.org/10.5194/jsss-11-299-2022, 2022
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High-temperature stable piezoelectric resonators are coated with oxide electrodes. The impact of the oxide electrode conductivity on the mass sensitivity and on the resonance frequency of the device is described by electrical and mechanical models, which are used to analyse the experimental data. Furthermore, the impact of an increasing oxide electrode conductivity is discussed with respect to the application of oxide electrodes and for gas sensing.
Hendrik Wulfmeier, René Feder, Li Zhao, and Holger Fritze
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Epitaxially grown electrodes for high-temperature stable piezoelectric transducers are prepared by pulsed laser depostion. To adjust the stoichiometry in the films, oxygen partial pressure, target composition and deposition temperature are varied. Langasite films with enhanced conductivity are deposited, serving as electrodes for nearly monolithic piezoelectric resonators. These resonators show strong admittance maxima for their 1st, 3rd and 5th harmonics and are not affected by spurious modes.
Sebastian Schlack, Hendrik Wulfmeier, and Holger Fritze
J. Sens. Sens. Syst., 11, 299–313, https://doi.org/10.5194/jsss-11-299-2022, https://doi.org/10.5194/jsss-11-299-2022, 2022
Short summary
Short summary
High-temperature stable piezoelectric resonators are coated with oxide electrodes. The impact of the oxide electrode conductivity on the mass sensitivity and on the resonance frequency of the device is described by electrical and mechanical models, which are used to analyse the experimental data. Furthermore, the impact of an increasing oxide electrode conductivity is discussed with respect to the application of oxide electrodes and for gas sensing.
Hendrik Wulfmeier, René Feder, Li Zhao, and Holger Fritze
J. Sens. Sens. Syst., 9, 15–26, https://doi.org/10.5194/jsss-9-15-2020, https://doi.org/10.5194/jsss-9-15-2020, 2020
Short summary
Short summary
Epitaxially grown electrodes for high-temperature stable piezoelectric transducers are prepared by pulsed laser depostion. To adjust the stoichiometry in the films, oxygen partial pressure, target composition and deposition temperature are varied. Langasite films with enhanced conductivity are deposited, serving as electrodes for nearly monolithic piezoelectric resonators. These resonators show strong admittance maxima for their 1st, 3rd and 5th harmonics and are not affected by spurious modes.
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Robert Schmoll, Sebastian Schramm, Tom Breitenstein, and Andreas Kroll
J. Sens. Sens. Syst., 11, 41–49, https://doi.org/10.5194/jsss-11-41-2022, https://doi.org/10.5194/jsss-11-41-2022, 2022
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The method of non-contact temperature measurement in conjunction with a 3D sensor described in this paper can be used to determine the heat loss of technical devices and industrial plants. This measurement tool thus helps to optimize the energy efficiency of these devices and plants.
Marc Pillarz, Axel von Freyberg, and Andreas Fischer
J. Sens. Sens. Syst., 9, 273–282, https://doi.org/10.5194/jsss-9-273-2020, https://doi.org/10.5194/jsss-9-273-2020, 2020
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The necessary reliability of wind turbine gearboxes increases the requirements for large gear measurements. However, standard measuring methods reach their limits for large gears with diameters > 1 m. Therefore a scalable optical gear measurement approach is presented. At first, simulation and experimental results prove the principle applicability of the measuring approach for small gear measurements. Geometric parameters of gears can be determined with a single-digit micrometer uncertainty.
Marcin Uradzinski and Hang Guo
J. Sens. Sens. Syst., 9, 7–13, https://doi.org/10.5194/jsss-9-7-2020, https://doi.org/10.5194/jsss-9-7-2020, 2020
Sebastian Hagemeier, Markus Schake, and Peter Lehmann
J. Sens. Sens. Syst., 8, 111–121, https://doi.org/10.5194/jsss-8-111-2019, https://doi.org/10.5194/jsss-8-111-2019, 2019
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In this contribution a multi-sensor measuring system is presented. With this measurement system comparative measurements using five different surface measurement sensors are performed under identical conditions in a single set-up. The presented measurement results show different transfer behaviour of each sensor and indicate unique advantages for tactile and optical sensors. Comparative measuring enables the investigation of measurement deviations and helps to improve appropriate techniques.
Manuel Bastuck, Tobias Baur, and Andreas Schütze
J. Sens. Sens. Syst., 7, 489–506, https://doi.org/10.5194/jsss-7-489-2018, https://doi.org/10.5194/jsss-7-489-2018, 2018
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Predictions about systems too complex for physical modeling can be made nowadays with data-based models. Our software DAV³E is an easy way to extract relevant features from cyclic raw data, a process often neglected in other software packages, based on mathematical methods, incomplete physical models, or human intuition. Its graphical user interface further provides methods to fuse data from many sensors, to teach a model the prediction of new data, and to check the model’s performance.
Pierre Bellier, Philippe Laurent, Serguei Stoukatch, François Dupont, Laura Joris, and Michael Kraft
J. Sens. Sens. Syst., 7, 299–308, https://doi.org/10.5194/jsss-7-299-2018, https://doi.org/10.5194/jsss-7-299-2018, 2018
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An original platform embedding multiple sensors and an energy harvesting unit is described. It is versatile and requires little or no maintenance. Multiple platforms can be connected to a hub device in a wireless sensor network. Emphasis was put on the reduction of power consumption and on the energy harvesting unit. With the addition of a small solar panel the system can be fully autonomous indoors. Characterization of power consumption and a test in real-world operation are presented.
Max Koeppel, Stefan Werzinger, Thomas Ringel, Peter Bechtold, Torsten Thiel, Rainer Engelbrecht, Thomas Bosselmann, and Bernhard Schmauss
J. Sens. Sens. Syst., 7, 91–100, https://doi.org/10.5194/jsss-7-91-2018, https://doi.org/10.5194/jsss-7-91-2018, 2018
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Optical temperature sensors offer unique features which make them indispensable for key industries such as the energy sector. However, commercially available systems are designed to perform either distributed or hot spot temperature measurements. We have combined two measurement concepts to overcome this limitation, which allow distributed temperature measurements to be performed simultaneously with read-outs of optical hot spot temperature sensors at distinct positions along a fiber.
Jajnabalkya Guhathakurta, Daniela Schurr, Günter Rinke, Roland Dittmeyer, and Sven Simon
J. Sens. Sens. Syst., 6, 223–236, https://doi.org/10.5194/jsss-6-223-2017, https://doi.org/10.5194/jsss-6-223-2017, 2017
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J. Sens. Sens. Syst., 6, 135–143, https://doi.org/10.5194/jsss-6-135-2017, https://doi.org/10.5194/jsss-6-135-2017, 2017
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In this work we present a cost- and energy-efficient measurement system for the spatial detection of gas phases in liquid fluids with a low permittivity value. We showed that we can simulate the system and its environment and use the calculated results to interpret the results originating from measurements of the electrical capacitance between different electrodes. The proposed system can be modified for, e.g., observation of fluid behaviour in cryogenic tanks for reigniteable space propulsion.
Nick Rüssmeier, Axel Hahn, Daniela Nicklas, and Oliver Zielinski
J. Sens. Sens. Syst., 6, 37–52, https://doi.org/10.5194/jsss-6-37-2017, https://doi.org/10.5194/jsss-6-37-2017, 2017
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Jan-Friedrich Ehlenbröker, Uwe Mönks, and Volker Lohweg
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Dietrich Imkamp, Jürgen Berthold, Michael Heizmann, Karin Kniel, Eberhard Manske, Martin Peterek, Robert Schmitt, Jochen Seidler, and Klaus-Dieter Sommer
J. Sens. Sens. Syst., 5, 325–335, https://doi.org/10.5194/jsss-5-325-2016, https://doi.org/10.5194/jsss-5-325-2016, 2016
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Strategic considerations and publications dealing with the future of industrial production are significantly influenced these days by the concept of "Industrie 4.0". For this reason the field of measurement technology for industrial production must also tackle this concept when thinking about future trends and challenges in metrology.
Hanieh Safari, Thomas Fricke, Björn Reddersen, Thomas Möckel, and Michael Wachendorf
J. Sens. Sens. Syst., 5, 301–312, https://doi.org/10.5194/jsss-5-301-2016, https://doi.org/10.5194/jsss-5-301-2016, 2016
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This study aimed to explore the potential of a multi-sensor system for assessment of biomass in pastures under different grazing intensities. Prediction accuracy with a mobile application of sensors was always lower than when sensors were applied statically. However accuracy of biomass prediction improved with increasing grazing intensity. Although the limitations associated with the system especially in very lenient pastures, the finding opens up a perspective for future grazing management.
Sebastian Felix Reinecke and Uwe Hampel
J. Sens. Sens. Syst., 5, 213–220, https://doi.org/10.5194/jsss-5-213-2016, https://doi.org/10.5194/jsss-5-213-2016, 2016
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A. Loderer and T. Hausotte
J. Sens. Sens. Syst., 5, 1–8, https://doi.org/10.5194/jsss-5-1-2016, https://doi.org/10.5194/jsss-5-1-2016, 2016
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This article describes a new qualification concept for dimensional measurements on optical measuring systems, using the example of a prototypical multi-scale multi-sensor fringe projection system for production-related inspections of sheet-bulk metal-formed parts. A new concept is developed for determining the orientations and positions of the sensors' measuring ranges in a common coordinate system. The principle element of the concept is a newly developed flexible reference artefact.
S. Sachse, A. Bockisch, U. Enseleit, F. Gerlach, K. Ahlborn, T. Kuhnke, U. Rother, E. Kielhorn, P. Neubauer, S. Junne, and W. Vonau
J. Sens. Sens. Syst., 4, 295–303, https://doi.org/10.5194/jsss-4-295-2015, https://doi.org/10.5194/jsss-4-295-2015, 2015
C. W. Zecha, J. Link, and W. Claupein
J. Sens. Sens. Syst., 2, 51–72, https://doi.org/10.5194/jsss-2-51-2013, https://doi.org/10.5194/jsss-2-51-2013, 2013
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Short summary
A newly developed experimental setup to characterize thin polymeric films during dehydration and hydration is presented. The great advantage of this measurement device and technique is that it monitors the mass change and conductivity of the films in situ and simultaneously at virtually identical conditions. The feasibility of the technique is demonstrated by characterizing ionomer thin films. A mass resolution of ±7.9 ng is achieved. The precision of relative humidity (RH) control is ±0.15 %.
A newly developed experimental setup to characterize thin polymeric films during dehydration and...
