Extensometer LVDT

Extensometers measure strain, the change in length of a specimen divided by the original length (gauge length) of the specimen. An extensometer measures strain by means of knife edges that contact the sample, one of which is fixed in its position, and the other which is located on a moveable arm. On these models, the moveable arm is pivoted, one end is the knife edge and the other is attached to an armature that moves through an LVDT coil. Most of these extensometers can be adapted to your exact specimen holding needs by the options that are described on the back page, but in their standard form hold flat or round specimens from 1/16” to 5/8” (1.6 mm to 16 mm).