The cell consists of a Vibrating Wire Transducer with an integral water chamber. A pair of nylon tubes and an armoured cable extends from the cell to a readout terminal located on stable ground. The nylon tubes are filled with water and connected, at one end, to a datum pot and at the other end to the transducer chamber. The cable connects the transducer to a terminal panel. Vertical movement of the cell relative to its readout location results in a change in liquid pressure within the chamber.
To measure the pressure change and hence the amount of settlement or heave, a Vibrating Wire Readout/Logger provides a direct reading of fluid pressure acting on the cell. The pressure is displayed in metres of water and can then be recorded for comparison with previously recorded data. A portable readout unit can be used in conjunction with other vibrating wire instruments although data may require corrections due to temperature and barometric pressure variations.
Please request Manuals through info@itm-soil.com.au