%20vector%20logo.svg)
The Strain Gauge, sometimes known as a Demec Gauge shown here consists of a digital dial gauge attached to a bar. A fixed conical point is mounted at one end of the bar, and a moving conical point is mounted on a knife edge pivot at the opposite end. A setting out bar is used to position pre-drilled discs which are attached to the structure using a suitable adhesive.
Each time a reading has to be taken, the conical points of the gauge are inserted into the holes in the discs and the reading on the dial gauge noted. In this way, strain changes in the structure are converted into a change in the reading on the dial gauge.
The gauge has been designed so that only minor temperature corrections are required for changes in ambient temperature, and a reference bar is provided for this purpose.
