In this version of SENSOR DDS® technology no permanent components are installed on site, electrical sources are temporarily placed near the area to be tested and the sensors are carried to each grid location where measurements are taken. This technology is based on fact that a generated electric current will follow any moisture through a damaged area of the liner, and mobile sensors placed on top the covering layer can measure the resulting current flow.
Waterproofing methods such as asphalt or plastic liners are often covered with a variety of materials (soil, gravel, concrete) following their installation in many different applications. It is a paradox that it is mainly the installation of this “protective layer” which is the most frequent cause of a damage to a geomembrane.
Experience is critical Technicians must differentiate between environmental / geological influences and anomalies that are as a result of damage. All Sensor technicians are highly experienced and backed by Sensor’s 30-years of accumulated know-how.
The use of SENSOR DDS® MOBILE is limited by the thickness of covering above the liner, which must be no greater than 900mm. Where the liner is submerged (water / toxic liquor) the operable depth is unlimited.