Articles | Volume 9, issue 1
J. Sens. Sens. Syst., 9, 133–141, 2020
https://doi.org/10.5194/jsss-9-133-2020

Special issue: Sensors and Measurement Systems 2019

J. Sens. Sens. Syst., 9, 133–141, 2020
https://doi.org/10.5194/jsss-9-133-2020

Regular research article 17 Apr 2020

Regular research article | 17 Apr 2020

Infrared-based sensor system for contactless monitoring of wetness and ice

Lakshan Tharmakularajah et al.

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Cited articles

Destatis – Federal Statistical Office Germany: Fachserie 8 Reihe 7 Verkehr Verkehrsunfälle, Federal Statistical Office Germany – Destatis, Wiesbaden, 2018. a
Döring, J., Tharmakularajah, L., Happel, J., and Krieger, K.-L.: A novel approach for road surface wetness detection with planar capacitive sensors, J. Sensors Sensor Syst., 8, 57–66, https://doi.org/10.5194/jsss-8-57-2019, 2019.  a
Günzler, H. and Gremlich, H.-U.: IR-Spektroskopie: Eine Einführung, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany, https://doi.org/10.1002/9783527662852, 2003. a
Harten, U.: Physik, Springer-Lehrbuch, Springer, Berlin, Heidelberg, https://doi.org/10.1007/978-3-642-53854-4, 2014. a
Holzwarth, F. and Eichhorn, U.: Non-contact sensors for road conditions, Sensors Actuat. A: Phys., 37–38, 121–127, https://doi.org/10.1016/0924-4247(93)80023-A, 1993. a, b
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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.