The Electronic Extensometers is a device measures the changes in the length of an material. Their design in accordance with resistance strain principles. Thus, the instrument allows measure the longitudinal deformations of the sample. For example, during tensile tests. The results include graph load/ deformation. This graph provides the coefficient of elasticity together with the load.
The available models range from gauge length 5mm to 500mm. Along with a deformation range of 1mm to 25mm. These are extensively useful with the Universal Testing Machines.