Moisture measurement in masonry walls using a non-invasive reflectometer

A new simple method is presented for determining the average moisture content in walls based on a time-domain reflectometer. Using such a microwave locating reflectometer, it is possible to perform non-invasive measurements in masonry with access from only one side. The spatial resolution of the reflectometer is improved by the use of a pole extraction algorithm. To obtain accurate results for the moisture content in every layer of the wall, it is only necessary that the geometry of the wall is known, which is normally the case