VidéoTraction®

Areas of Application

Video extensometers allow for non-contact and high precision measurement during tensile, compression, fatigue, shear, tensile/torsion tests on all kind of testing materials: metals, composites, plastics, elastomers, foams, concrete, textiles.

It is especially well suited to very thin materials with high or low strains, for tests of extreme high and low temperature, as well as to determine Poisson ratio or r-value.

Principle

  • Pictures are acquired and processed in real time through the Ethernet port (Gigabit), via a high resolution (1390*1035) CCD camera (Charge Coupled Device). It is therefore unnecessary to add another video input card in the computer making the video extensometer usable on a laptop!
  • VidéoTraction® software tracks marks on the testing material. It then deduces strains by measuring distance.
  • The mark type depends on the material (paint or adhesive stickers).
  • The usage of a high resolution lens brings additional precision to the system.

Advantages

  • Contactless measurement at high, low, or ambient temperatures
  • High resolution and accuracy
  • Ease of use and streamlined workflow
  • Simultanious measurement of longitudinal and transversal strains
  • Saving of data and images for later analysis
  • Realtime feedback during the test
  • Quick and easy setup of testing materials
  • Different marking methods provided
  • Perfectly adapted to large and small deformations
  • Can be used with any tensile machine
  • Simple and convenient integration with any tensile machine software on the same computer
  • Works on laptops
  • Compatable with Windows XP (SP3), Vista, 7, and 8
  • EN ISO 9513 Class 0.5 Compliant (for field views ≤ 50mm) and EN ISO 9513 Class 1 Compliant (for field views ≤ 500mm)

Available options:

  • X and Sablier. Longitudinal strain measurement with or without preliminary markings on the material.
  • Also available with "Z" (depth) option in bi-camera mode.
  • XY. Simultaneous measurement of axial and transverse strain.
  • XY+"Z". Simultaneous measurement of axial and transverse strain on the material face and side.
  • Striction. Section reduction measurement on a band-type material with no preliminary markings.
  • Crack propagation. Crack propagation measurment during a tensile or fatigue test in real time.
  • Basic Custom Strain. Tracking and recording X and Y coordinates of N marks.
  • Advanced Custom Strain. Offers the possibility to select marker couples to measure strain.
  • Shear. Strain measurement during shear tests.
  • Tensile/Torsion. Strain and torsion measurement during tensile/torsion tests.

Additional information