Abstract
This chapter demonstrates the usefulness of Near-Infrared optical fiber analysis for sensing moisture migration in soil. As a result of a series of experiments and laboratory testing a number of sensing probes have been developed that are comprised of optical fibers using the evanescent field as the signal transduction mechanism. The movement of water through dry sand was simulated in the laboratory and the sensors were used in situ to measure the variation of soil moisture in real time.
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Ghandehari, M., Kostarelos, K., Vimer, C.S. (2018). Subsurface Monitoring of Water in Soil. In: Optical Phenomenology and Applications . Smart Sensors, Measurement and Instrumentation, vol 28. Springer, Cham. https://doi.org/10.1007/978-3-319-70715-0_9
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DOI: https://doi.org/10.1007/978-3-319-70715-0_9
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