The paper deals with the problem of measuring the moisture of agricultural soils by an accurate, on-site, real-time method. The idea is to estimate the moisture by measuring the speed of sound in the medium: the main issue is therefore to determine a precise relationship between the two quantities. To this purpose, the Brutsaert's model for elastic waves in porous media is applied, taking into consideration different kinds of soil of common interest in agriculture. The authors have derived the speed-moisture curves, the conditions for the actual validity of the curves, and the suitable sound frequency for performing the measurement, for a wide range of agricultural soils in different physical conditions. The paper results are therefore the basis to realize an inexpensive and accurate moisture sensor for farmers.

An Acoustic Method for Soil Moisture Measurement / Adamo, F; Andria, G; Attivissimo, F; Giaquinto, N. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - STAMPA. - 53:4(2004), pp. 891-898. [10.1109/TIM.2004.831126]

An Acoustic Method for Soil Moisture Measurement

Adamo F;Andria G;Attivissimo F;Giaquinto N
2004-01-01

Abstract

The paper deals with the problem of measuring the moisture of agricultural soils by an accurate, on-site, real-time method. The idea is to estimate the moisture by measuring the speed of sound in the medium: the main issue is therefore to determine a precise relationship between the two quantities. To this purpose, the Brutsaert's model for elastic waves in porous media is applied, taking into consideration different kinds of soil of common interest in agriculture. The authors have derived the speed-moisture curves, the conditions for the actual validity of the curves, and the suitable sound frequency for performing the measurement, for a wide range of agricultural soils in different physical conditions. The paper results are therefore the basis to realize an inexpensive and accurate moisture sensor for farmers.
2004
An Acoustic Method for Soil Moisture Measurement / Adamo, F; Andria, G; Attivissimo, F; Giaquinto, N. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - STAMPA. - 53:4(2004), pp. 891-898. [10.1109/TIM.2004.831126]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/2283
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