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Long-travel extensometer

Long-travel extensometer

The long-travel extensometer is primarily used for direct extension measurement on specimens with medium and large extensions in tensile and hysteresis tests and also in temperature chambers (using extended sensor arms). The robust mechanical design of the guide assemblies, together with the swiveling knife-edges, ensures safe, reliable operation with specimens prone to whipping, e.g. elastomers.

Advantages of the long-travel extensometer

  • can be used up to specimen break, even with high forces and brittle specimen material
  • very low drag forces
  • very large measurement travel
  • extensometer control via the test program optionally available

ProLine long-travel extensometer

ProLine long-travel extensometer

The ProLine long-travel extensometer is suitable for direct extension measurement on all elastic materials, including elastomers, plastics, films/foils, leather, textiles etc. and can be used for exact determination of offset yield and strain at break in tensile tests.

Advantages of the ProLine long-travel extensometer

  • very large measurement travel (minus Le).
  • swiveling knife-edges prevent transmission of specimen fracture energy to the measuring system - knife-edges are also protected!

zwicki long travel extensometer

zwicki long-travel extensometer

The zwicki long-travel extensometer is suitable for direct extension measurement on all elastic materials, including elastomers, plastics, films/foils, leather, textiles etc. and can be used for exact determination of offset yield and strain at break in tensile tests.

Advantages of the zwicki long-travel extensometer

  • very high resolution over the entire measurement range combined with extremely low drag-forces
  • very large measurement travel (minus Le).
  • robust construction with impact-resistant measurement system
  • extensometer control via the test program optionally available

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