The Vibrating Wire Soil Extensometer instrument consists of a vibrating wire displacement sensor encased in a sealed body. The body contains a telescopic outer PVC pipe fitted with two flanges and an inner stainless steel rod. One end of the rod is attached to the flange, while its other end is connected to the displacement sensor of the assembly which is attached to the other flange. They are typically installed in series as a chain over a desired distance. As deformation occurs, the telescopic pipe moves with the soil which in turn, the displacement sensor measures.

Product features: 

• Easy installation and maintainance
• Very robust and accurate
• Wide measuring range
• Suitable for remote reading and data logging
• Accuracy not affected by cable length