Relationship of Soil Moisture to the Dielectric Property

by Ernest T. Selig, (M.ASCE), Prof. of Civ. Engrg.; State Univ. of New York at Buffalo, Buffalo, N.Y.,
Sundru Mansukhani, (A.M.ASCE), Geotechnical Engr.; Law Engrg. Testing Co., Birmingham, Ala.,

Serial Information: Journal of the Geotechnical Engineering Division, 1975, Vol. 101, Issue 8, Pg. 755-770

Document Type: Journal Paper


The dielectric property of a material like soil is significantly influenced by the amount of moisture present.The relationships between moisture content and dielectric constant determined for a wide variety of materials in the past are summarized in this paper. A strong correlation is demonstrated between these two parameters when moisture content is expressed in terms of weight of water per unit volume of material. The trends are basically the same for all materials. Sensors developed for moisture monitoring in soils using the dielectric property are briefly described. The related electronic concepts and definitions are also examined.

Subject Headings: Material properties | Water content | Soil water | Correlation | Parameters (statistics) | Professional societies | Probe instruments | Terminology and definition

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