The extensometers are basically made by 2 clamping devices and a middle tubolar steel part determining the gauge length of 200 mm.

Extensometers used for measuring the extension of specimens in traction, particularly in the case of steel and brittle materials, are only able to detect strain during the first stage of the test, or rather, while the brittle materials conserve their elasticity as they have to be disconnected before failure. This simple and economic system fully satisfy these requirements because:

it measures extensions with high precision of both elastic and plastic stage and with the appropriate simple adjustment, it is connectable to almost all testing machines

it remains connected until breakage

it is applied directly to the specimen.

Main Features:

Measures extension of both elastic and plastic stage

High precision electronic transducer

Applied directly to the specimen up to the failure

2 model dedicated to rebars

1 model dedicated to strands.