Description:

The Vibrating Wire Hydrostatic Profiler is used for the measurement of subsurface settlement. The sensor measures the hydrostatic head of liquid between the sensor and the reservoir locations.

 Working principle: A vibrating wire sensor is located within a probe that can be pulled through a buried pipe or borehole. The sensor is connected via a liquid-filled tube mounted on a reel which is mounted horizontally at the reservoir location on stable ground. The reel is free to turn as the probe is pulled through the pipe or borehole.