Articles | Volume 9, issue 1
https://doi.org/10.5194/jsss-9-133-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/jsss-9-133-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Regular research article
| 
17 Apr 2020
Regular research article |
| 17 Apr 2020
| 17 Apr 2020
Infrared-based sensor system for contactless monitoring of wetness and ice
Lakshan Tharmakularajah
CORRESPONDING AUTHOR
Institute of Electrodynamics and Microelectronics (ITEM.ae), University of Bremen, Bremen, Germany
Jakob Döring
Institute of Electrodynamics and Microelectronics (ITEM.ae), University of Bremen, Bremen, Germany
Karl-Ludwig Krieger
Institute of Electrodynamics and Microelectronics (ITEM.ae), University of Bremen, Bremen, Germany
Related authors
Jakob Döring, Lakshan Tharmakularajah, Jakob Happel, and Karl-Ludwig Krieger
J. Sens. Sens. Syst., 8, 57–66, https://doi.org/10.5194/jsss-8-57-2019, https://doi.org/10.5194/jsss-8-57-2019, 2019
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This paper presents a novel approach to detect road surface wetness, which can prospectively contribute to increase the safety of vehicle passengers and traffic participants in times of highly or fully automated driving. In an experimental study, the feasibility of the approach is shown by simulating realistic road wetness scenarios on a test bench. Furthermore, a sensor system is proposed and integrated into a vehicle. The potential of the presented approach is demonstrated in a field test.
Jakob Döring, Lakshan Tharmakularajah, Jakob Happel, and Karl-Ludwig Krieger
J. Sens. Sens. Syst., 8, 57–66, https://doi.org/10.5194/jsss-8-57-2019, https://doi.org/10.5194/jsss-8-57-2019, 2019
Short summary
Short summary
This paper presents a novel approach to detect road surface wetness, which can prospectively contribute to increase the safety of vehicle passengers and traffic participants in times of highly or fully automated driving. In an experimental study, the feasibility of the approach is shown by simulating realistic road wetness scenarios on a test bench. Furthermore, a sensor system is proposed and integrated into a vehicle. The potential of the presented approach is demonstrated in a field test.
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Markus Brüne, Wilhelm Furian, Wieland Hill, and Andreas Pflitsch
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Christoph Kroh, Roland Wuchrer, Margarita Günther, Thomas Härtling, and Gerald Gerlach
J. Sens. Sens. Syst., 7, 51–55, https://doi.org/10.5194/jsss-7-51-2018, https://doi.org/10.5194/jsss-7-51-2018, 2018
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The inline monitoring of parameters in aqueous liquids is facing an increasing demand in many application areas. In this paper we report on an optical monitoring of the pH value in liquids by means of a sensitive hydrogel, which can be applied in the physiological range. Our results indicate a nearly linear dependency between pH value and hydrogel swelling. Furthermore, we show an improvement of the response time by a factor of 2 in comparison to other systems exploiting this kind of hydrogel.
Beate Oswald-Tranta
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Images of an infrared camera show blurring effects while recording a moving object. Not only the contrast is corrupted by the motion but also the object temperature seems to be lower. It is shown how such images and the true temperature with a good approximation can be restored. Since the detection mechanism of an infrared camera is different from usual digital cameras, also the restoration is different. Examples are presented for motion deblurring used to restore images with different motions.
Roberto Marsili and Gianluca Rossi
J. Sens. Sens. Syst., 6, 361–365, https://doi.org/10.5194/jsss-6-361-2017, https://doi.org/10.5194/jsss-6-361-2017, 2017
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The car production industry is being subjected to more and more pressing technological challenges. In this framework the use of an advanced measurement technique such as thermoelasticity allows the engineers to have a fast and reliable tool for experimental investigation, optimization and validation of the FEM models. In this work it is shown how the thermoelastic measurement technique can be used to optimize a Ferrari car frame.
Christian Rogge, Steffen Zinn, Paolo Prosposito, Roberto Francini, and Andreas H. Foitzik
J. Sens. Sens. Syst., 6, 351–359, https://doi.org/10.5194/jsss-6-351-2017, https://doi.org/10.5194/jsss-6-351-2017, 2017
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This work presents a cost-effective optical-based sensor for pH monitoring of sample volumes less than 150 µL. As part of a bigger project to develop a stand-alone micro bioreactor system, measurements carried out with phenol red and DMEM reported a standard error of calibration in the physiologic pH range (6.5–7.5) of pH ±0.04. Compared to other accessible optical-based sensors this reported system is a good alternative regarding the overall costs of less than EUR 50.
Henrik Zimmermann, Mathias Wiese, Luigi Fiorani, and Alessandro Ragnoni
J. Sens. Sens. Syst., 6, 155–161, https://doi.org/10.5194/jsss-6-155-2017, https://doi.org/10.5194/jsss-6-155-2017, 2017
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Because of their direct impact on patients, medical supply lines are under strict regulations and have to be monitored in terms of purity on a regular basis. State-of-the-art measurement solutions do not allow for continuous bedside monitoring. The aim of the presented work is to provide a compact multispecies monitoring system based on the latest quantum cascade laser technologies allowing for the continuous bedside monitoring of medical gases.
T. Ott, M. Schossig, V. Norkus, and G. Gerlach
J. Sens. Sens. Syst., 4, 313–319, https://doi.org/10.5194/jsss-4-313-2015, https://doi.org/10.5194/jsss-4-313-2015, 2015
M. Mohebbi
J. Sens. Sens. Syst., 4, 209–215, https://doi.org/10.5194/jsss-4-209-2015, https://doi.org/10.5194/jsss-4-209-2015, 2015
F. Vita, C. Kern, and S. Inguaggiato
J. Sens. Sens. Syst., 3, 355–367, https://doi.org/10.5194/jsss-3-355-2014, https://doi.org/10.5194/jsss-3-355-2014, 2014
U. Kienitz
J. Sens. Sens. Syst., 3, 265–271, https://doi.org/10.5194/jsss-3-265-2014, https://doi.org/10.5194/jsss-3-265-2014, 2014
T. Bley, E. Pignanelli, and A. Schütze
J. Sens. Sens. Syst., 3, 121–132, https://doi.org/10.5194/jsss-3-121-2014, https://doi.org/10.5194/jsss-3-121-2014, 2014
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Short summary
In order to differentiate between a wet and a dry road surface, the water film height should be measured by using an infrared-based sensor system. By means of different wavelengths, it is also possible to distinguish between ice and water. In this article, a sensor system for the determination of the physical state of water on different surfaces using infrared LEDs and one photodiode is presented. This shall serve as a basis for the calculation of the road condition.
In order to differentiate between a wet and a dry road surface, the water film height should be...
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