An open-ended probe with an antenna for the measurement of the water content in the soil
PBN-AR
Instytucja
Instytut Agrofizyki im. Bohdana Dobrzańskiego Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
Czasopismo
COMPUTERS AND ELECTRONICS IN AGRICULTURE
ISSN
0168-1699
EISSN
Wydawca
ELSEVIER SCI LTD
DOI
URL
Rok publikacji
2019
Numer zeszytu
105042
Strony od-do
1-8
Numer tomu
167
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
angielski
Soil moisture
Dielectric permittivity
Numerical simulations
Vector network analyzer
Streszczenia
Język
angielski
Treść
nowledge of water content (WC) in soil is especially necessary in agriculture to assess the individual irrigation state of the plant. Therefore, there is a need to develop sensors able to measure WC in large volumes and in possibly wide frequency range, e.g. by modifications of the classical open-ended (OE) probes which are characterized by low penetration depth of electromagnetic waves. The objective of the research presented in this paper was to test the performance of an open-ended dielectric probe with an antenna (OE-A) in the frequency range 1 MHz–6 GHz for three mineral soils using vector network analyzer (VNA) one port (reflective) measurements. Firstly, numerical simulations of the probe using Ansys HFSS software were performed, followed by the probe calibration on reference materials and measurements of the soil samples to determine soil moisture. The simulation and measurement results of the real part of dielectric permittivity () were in good agreement with literature data up to 350 MHz. obtained for the tested soils was connected with their moisture and the relation between and volumetric water content (θv) was determined and compared with the Topp’s equation. The obtained results proved that our probe can be used for the measurement of the WC in soils in the frequency range from 50 MHz to 350 MHz.
Inne
System-identifier
PX-5dd3edd9d5de4a1e71979f38
CrossrefMetadata from Crossref logo
Cytowania
Liczba prac cytujących tę pracę
Brak danych
Referencje
Liczba prac cytowanych przez tę pracę
Brak danych