The Rod Extensometer system accurately measures settlement and/or heave between signal or multiple anchor point s in a borehole and at its reference head. The system employs up to eight rods, anchored along the axis of borehole, terminating in the reference head at the borehole entrance.
The vibrating wire soil Extensometer measures lateral deformation of soil and rock, particularly in embankment dams and quarry or mining excavations. The extensometer consists of a vibrating wire displacement transducer contained within a heavy duty sealed housing.
The digital tape Extensometer is a portable device used for measuring displacement between pairs eyebolts. The unit comprises a stainless steel measuring tape with equally spaced precision punched holes. The tape winds onto a reel, which incorporates a tape tensioning device and a digital LCD readout.
The continuous Rod extensometer system accurately measures settlement and/or heave at signal or multiple anchor points in a borehole and at its reference head. The continuous Rod Extensometer is pre-assembled to specified lengths.