All our measurements rest on the same principle: the vibrating wire. A steel wire tensioned between two anchors, whose natural frequency varies with that tension. Whatever the structure undergoes, the sensor returns as a frequency — a signal that does not drift with cable length.
The family everything else follows from. Two separate coils: one sustains the vibration of the wire, the other measures its frequency. Separating excitation from measurement limits errors and improves repeatability.
Measurement of pore pressures and total pressures in soils and embankment structures. Cells are embedded during construction or installed in boreholes.
Crack meters and joint meters, mounted either side of the area to be watched. They measure opening, closing and shear, with continuous monitoring over time.
For measuring deformation: this is the measurement of compression and decompression of the soils beneath a structure. They follow the life of the structure from the day it is built.
Temperature governs every other measurement: concrete moves, steel expands. It is measured in its own right, using platinum resistance probe technology.
Read the sensors, record, transmit. From a one-off manual reading to a standalone logger that polls a sensor network and sends the data back.
The frequency of a tensioned wire varies with its tension. Fixed to the structure, it turns every deformation into a measurable frequency that stays stable over time.
Two separate coils: one sustains the vibration, the other measures it.
Separating excitation from measurement limits errors and improves repeatability by reducing fatigue in the wire — which gives it a longer service life.
Our engineering office designs and manufactures sensors to suit your structure.
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