METHOD FOR DETERMINING WATER CONTENT OF A MATERIAL AND MEASURING DEVICE

摘要

The invention concerns a method for determining the water content (Wv%) of a material (12) using electromagnetic waves, comprising the following steps: applying an electromagnetic wave; measuring the propagation time (T) of a surface electromagnetic wave (26) between two points (10, 28); calculating the dielectric constant ( epsilon ') of said material (12) on the basis of said propagation time (T); determining the dry density ( gamma d) of the material (12); and calculating the water content (Wv%) of said material (12) from the dielectric constant ( epsilon ') and said dry density ( gamma d). The invention also concerns a device for determining water content (Wv%) using two antennae (10, 20), means (44) for measuring the travel time (T) and processing means (48).