@Article{OliveiraNonoOliv:2014:CaHuSe,
author = "Oliveira, Rodrigo de Matos and Nono, Maria do Carmo de Andrade and
Oliveira, G. de Souza",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and Vale do
Para{\'{\i}}ba University, UNIVAP, Campus Urbanova, Av. Shishima
Hifumi 2911, Urbanova, S. Jos{\'e} dos Campos, SP, Brazil",
title = "A capacitive-type humidity sensor using porous ceramics for
environmental monitoring",
journal = "Advanced Materials Research",
year = "2014",
volume = "975",
pages = "194--198",
keywords = "Capacitive sensors, Disaster prevention, Environmental
engineering, Grain boundaries, Landslides, Microstructure,
Scanning electron microscopy, Soil moisture, Space research, X ray
diffraction, Aggressive environment, Electrical measurement,
Environmental Monitoring, Environmental parameter, Mechanical
resistance, Porous ceramics, Soil water content, Soil water
dynamics, Ceramic materials.",
abstract = "The growing interest for the environmental monitoring in order to
minimize the potential risk of landslide in hillsides and to
prevent new disasters, has led the improvement in the development
of new materials for manufacturing of capacitive sensor devices
more reliable, more versatile and at lower cost. In this sense,
ceramics have shown advantages from the point of view of
mechanical resistance, resistance to chemical attacks and physical
and chemical stability in aggressive environments. In addition,
these materials have a unique structure, consisting of grains,
grain boundaries, surfaces and pores, the control of which permit
the attainment of suitable microstructures to be used as moisture
sensors. The goal of this work is to investigate the capability of
porous ceramics sensor devices, developed in National Institute
for Space Research (INPE), to monitor the soil water dynamics. For
that, ceramics sensors microstructures were characterized through
scanning electron microscopy, X-ray diffraction and Hg porosimetry
techniques. Electrical measurements were performed in function of
water portion addition in soil samples, up to the saturation
limit, as it happens in area with landslide risk in periods of
rain. The analyses of the results evidenced that the ceramics
devices are promising ones concerning to their potential in the
monitoring of environmental parameters. © (2014) Trans Tech
Publications, Switzerland.",
doi = "10.4028/www.scientific.net/AMR.975.194",
url = "http://dx.doi.org/10.4028/www.scientific.net/AMR.975.194",
isbn = "9783038351436",
issn = "1022-6680",
label = "scopus 2014-11 MatosOliveiraAndrSouz:2014:CaHuSe",
language = "en",
urlaccessdate = "30 abr. 2024"
}