Development on Soil Moisture Measurement by Electromagnetic Method
Ma Xiao · Shuitu baochi yanjiu · 2002
Based on the systematic analysis of the law of soil electric conduction and dielectric constant with soil text, density, moisture, salt content, the maximum soil dielectric loss factor is determinated , a new inexpensive soil moisture sensor is developed, its basic principle ,work characteristics, and application are presented.The experiment shows it has advantage of high precise, and the errors of soil kinds, bulk unit weight and salt constant are small.