Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
doi:10.5194/nhess-2017-79
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Brief communication
22 Feb 2017
Review status
This discussion paper is under review for the journal Natural Hazards and Earth System Sciences (NHESS).
Brief Communication: A low cost Arduino®-based wire extensometer for earth flow monitoring
Luigi Guerriero1, Giovanni Guerriero2, Gerardo Grelle1, Francesco M. Guadagno1, and Paola Revellino1 1Department of Science and Technology, University of Sannio, 11 Port'Arsa street, 82100, Benevento, Italy
2Independent researcher, 5 Accesso alla Nazionale street, 83010, Capriglia Irpina, Avellino, Italy
Abstract. Continuous monitoring of earth flow displacement is essential for the understanding of the dynamic of the process, its ongoing evolution and to design mitigation measures. Despite its importance, it is not always applicable due to its expensiveness, and the need of integration with additional sensors for monitoring factors controlling movement. To overcome these problems, we developed and tested a low-cost Arduino-based wire-rail extensometer integrating a datalogger, a power system and multiple digital and analog inputs. The system is equipped with a high precision position transducer that in the test configuration offers a measuring range of 1023 mm and an associate accuracy of ±1 mm and integrates an operating temperature sensor that should allow to identify and correct potential thermal drift that typically affects this kind of systems. Field test, conducted at the Pietrafitta earth flow where additional monitoring systems had been installed, indicates a high reliability of the measurement and a high monitoring stability without visible thermal drift.

Citation: Guerriero, L., Guerriero, G., Grelle, G., Guadagno, F. M., and Revellino, P.: Brief Communication: A low cost Arduino®-based wire extensometer for earth flow monitoring, Nat. Hazards Earth Syst. Sci. Discuss., doi:10.5194/nhess-2017-79, in review, 2017.
Luigi Guerriero et al.
Luigi Guerriero et al.
Luigi Guerriero et al.

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Short summary
In this paper we present a new Arduino-based wire extensometer developed to provide a low-cost autonomous platform for continuous monitoring of landslides. The system integrates a datalogger, a power system, a high precision position transducer, and has multiple digital and analog inputs. Our field test indicates a high reliability of the measurement and a high monitoring stability without visible thermal drift. The onboard temperature sensor might be used to correct/identify thermal drifting.
In this paper we present a new Arduino-based wire extensometer developed to provide a low-cost...
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