The video extensometer is used for the optical measurement of length change and is suitable for tensile tests, compression tests, bending tests and torsion tests on all materials.

Advantages

• Suitable for tensile, compression, bending, shear and torsion tests on all materials
• Non-contact measuring method
• With a suitable surface structure, no artificial marking is required
• Easy handling
• Robust housing for use in laboratory and industrial environments
• Indirect measurement via mirror possible
• Reliably applicable for different specimen thicknesses without modification or recalibration up to ±15 mm
• Insensitive to interference due to the use of blue light in a small wavelength range and polarization filters
• Stable and reproducible; class 0.5 according to ISO 9513 in the mentioned field of view
• Can be used for strain measurement and strain control
• Can be used in combination with temperature chambers and high temperature furnaces up to 1400°C (without additional costs)
• Easily expandable for combined determination of longitudinal and lateral strain or as a multi-camera system for larger fields of view
• Automatic determination of the strain characteristics based on the defined initial gauge length and the range of maximum strain
• Simultaneous evaluation of several strain ranges
  1. Segmented evaluation of the complete free length (strain distribution possible) - advantage: specimen break always in the strain measurement range
  2. Evaluation of different initial measuring lengths