Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Jean-Pierre Frangi"'
Autor:
Xavier Chavanne, Jean-Pierre Frangi
Publikováno v:
Journal of Sensor and Actuator Networks, Vol 13, Iss 3, p 32 (2024)
This article presents a wireless in situ sensor designed to continuously monitor profiles of parameters in porous media, such as soil moisture, salinity, and temperature. A review of existing in situ soil sensors reveals that it is the only device ca
Externí odkaz:
https://doaj.org/article/7f431868358b41fe808ce16691c726e8
Autor:
Xavier Chavanne, Jean-Pierre Frangi
Publikováno v:
Sensors, Vol 14, Iss 9, Pp 15815-15835 (2014)
This paper describes a sensor dedicated to measuring the vertical profile of the complex permittivity and the temperature of any medium in which sensor electrodes are inserted. Potential applications are the estimate of the humidity and salinity in a
Externí odkaz:
https://doaj.org/article/36683578e05946bab0653685c313394d
Publikováno v:
Sensors, Vol 18, Iss 6, p 1730 (2018)
The article comments on claims made by Rêgo et al. about the sensor they developed to determine soil water content and its salinity via the admittance measurement of electrodes embedded in the soil. Their sensor is not based on a self-balanced bridg
Externí odkaz:
https://doaj.org/article/43c1847929ce4053998affe56885e580
Autor:
Xavier Chavanne, Jean-Pierre Frangi
Publikováno v:
European Journal of Environmental and Civil Engineering. 27:457-478
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e698dc57f5eebe494d54b90ce37394a4
https://doi.org/10.1080/19648189.2022.2051076
https://doi.org/10.1080/19648189.2022.2051076
Publikováno v:
European Journal of Environmental and Civil Engineering. 26:2439-2452
The article examines the fringe effects of a two-rod capacitor inserted in a medium like a soil, due to its finite height h and presence of leads to measurement unit. The effects modify the coeffic...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12cb4a7132de59a7888cec0c0eded3d4
https://doi.org/10.1080/19648189.2020.1763477
https://doi.org/10.1080/19648189.2020.1763477
Autor:
Xavier Chavanne, Jean-Pierre Frangi
Publikováno v:
European Journal of Environmental and Civil Engineering. 24:2168-2186
We have developed a permittivity-based sensor using a new and more accurate measurement technique. We now investigate the optimum geometry of sensor electrodes to apply models of conversion of medi...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45d847f76793c5fbbc434a1da25305e0
https://doi.org/10.1080/19648189.2018.1500311
https://doi.org/10.1080/19648189.2018.1500311
Publikováno v:
CSE/EUC/DCABES
For several years, we have seen a significative increase of building-operation data acquisition solutions that have their own particularity or their own specificities. The implementation of most of them represents a significant cost in the overall ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59b86dfeaf9d1a059429e818d3e93ddd
https://doi.org/10.1109/cse-euc-dcabes.2016.260
https://doi.org/10.1109/cse-euc-dcabes.2016.260
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 59:1850-1859
This paper describes a new instrument dedicated to determining the vertical profile of the admittance of a sensor embedded in a medium, such as soil. The instrument consists of two conductive parallel cylinders with a separation between axes on the o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd08b0e406ec5a46847cf3f76998ab21
https://doi.org/10.1109/tim.2009.2028781
https://doi.org/10.1109/tim.2009.2028781
Autor:
Jean-Pierre Frangi, Xavier Chavanne
Publikováno v:
Comptes Rendus Geoscience. 340:263-287
Resume Cet article etablit le bilan energetique de la production d’ethanol a partir de mais aux Etats-Unis d’Amerique, depuis le champ jusqu’a la station service, suivant la methodologie decrite par Chavanne et Frangi (C. R. Geoscience 339 (200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::166209b7f858a338de34dfdac4cbc924
https://doi.org/10.1016/j.crte.2008.01.006
https://doi.org/10.1016/j.crte.2008.01.006
Publikováno v:
Applied optics
Applied optics, Optical Society of America, 2015, 54 (17), pp.5453. ⟨10.1364/AO.54.005453⟩
Applied optics, Optical Society of America, 2015, 54 (17), pp.5453. ⟨10.1364/AO.54.005453⟩
International audience; An inversion method based on a neural network was used to estimate water and dry matter contents on plant leaves, from transmittance and reflectance measurements, using light emitting diodes (LEDs) at specific wavelengths in N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c8ad057c226545c51fb0f3723827d00
https://hal-insu.archives-ouvertes.fr/insu-02924968
https://hal-insu.archives-ouvertes.fr/insu-02924968
