Multi Sensor Node for Long-Term Wireless Measurement of Density, pH Value and Temperature in Silage for Bio Gas

Konferenz: Sensoren und Messsysteme - 19. ITG/GMA-Fachtagung
26.06.2018 - 27.06.2018 in Nürnberg, Deutschland

Tagungsband: ITG-Fb. 281: Sensoren und Messsysteme

Seiten: 4Sprache: EnglischTyp: PDF

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Arnold, Phillip; Tschoban, Christian (Fraunhofer Institute for Reliability and Microintegration IZM, Berlin, Germany)
Heuer, Kristina; Thuenen, Torsten (Julius-Kühn-Institut, Braunschweig, Germany)
Rochlitzer, Robby (ESYS GmbH, Berlin, Germany)
Lang, Klaus-Dieter (Technische Universität Berlin, Berlin, Germany)

A sensor node was designed, manufactured, tested and implemented to measure the density, the pH value and the temperature inside a stack of silage to increase the silage process efficiency for use in bio gas sites. The sensor node which comprises beside the multisensory system a wireless data communication unit, a battery, and an energy management system is described in this paper as well as the adjustment with a small model silo. A new sensor principle was developed for density measurements in inhomogeneous materials such as silage stacks.