Optimum wavelength selection for a POF-based soil moisture sensor with a gypsum substrate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00386242" target="_blank" >RIV/68407700:21230/25:00386242 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1361-6501/ae1f31" target="_blank" >https://doi.org/10.1088/1361-6501/ae1f31</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6501/ae1f31" target="_blank" >10.1088/1361-6501/ae1f31</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimum wavelength selection for a POF-based soil moisture sensor with a gypsum substrate

Popis výsledku v původním jazyce

Measuring soil moisture is important in many fields. Knowing the water content of soil is particularly crucial in agriculture, plant cultivation, gardening, irrigation management, climatology and weather forecasting. However, accurately determining soil moisture levels can be challenging, and several methods are commonly employed. This paper presents a sensor based on the Fresnel total internal reflection method. It uses multimode plastic optical fibre (POF) with a stripped cladding and exposed core, which is sealed within a gypsum substrate. The presence of moisture affects its transmittance. The performance of this detection method also depends on the wavelength of the test light. The paper describes the construction of the sensor. The mechanical, optical, and electronic designs are described in detail. It presents transmittance as a function of moisture and for different wavelengths in the visible and near-infrared spectra for various soil moisture values. The results demonstrate the effectiveness of the proposed sensing method. The sensor has low power consumption and does not interact directly with the soil. This ensures minimal interaction with other sensors and electronics, as well as minimising the influence of soil mineralisation on the measurement results.

Název v anglickém jazyce

Optimum wavelength selection for a POF-based soil moisture sensor with a gypsum substrate

Popis výsledku anglicky

Measuring soil moisture is important in many fields. Knowing the water content of soil is particularly crucial in agriculture, plant cultivation, gardening, irrigation management, climatology and weather forecasting. However, accurately determining soil moisture levels can be challenging, and several methods are commonly employed. This paper presents a sensor based on the Fresnel total internal reflection method. It uses multimode plastic optical fibre (POF) with a stripped cladding and exposed core, which is sealed within a gypsum substrate. The presence of moisture affects its transmittance. The performance of this detection method also depends on the wavelength of the test light. The paper describes the construction of the sensor. The mechanical, optical, and electronic designs are described in detail. It presents transmittance as a function of moisture and for different wavelengths in the visible and near-infrared spectra for various soil moisture values. The results demonstrate the effectiveness of the proposed sensing method. The sensor has low power consumption and does not interact directly with the soil. This ensures minimal interaction with other sensors and electronics, as well as minimising the influence of soil mineralisation on the measurement results.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/TN02000067" target="_blank" >TN02000067: Nové směry v elektronice pro průmysl 4.0 a medicínu 4.0</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

MEASUREMENT SCIENCE & TECHNOLOGY

ISSN

0957-0233

e-ISSN

1361-6501

Svazek periodika

36

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

001621753300001

EID výsledku v databázi Scopus

2-s2.0-105033915023