Video extensometer:
The Optical Video Extensor It is a team capable of Measuring deformations in a corrugated bar that is being subjected to stresses during an experiment in a testing machine.
The Video Extensor and this type of equipment They allow us to measure with certainty deformation to rupture as compounds that experience high-energy breaks upon failure.
From Servosis we have reached an agreement with the Czech manufacturer XSight to incorporate their signals into our PCD2K software, It can be installed on any testing machine.
The Video Extensor is controlled through our PCD2K software, in which the user has various options for its use:
General usage options, With these tools, you have the maximum possibilities for performing tests. The customer can configure their test in a personalized way and perform the data processing later.
Customized Norma-compliant test windows, With these, the maximum simplification is achieved in the execution of a specific test, by grouping in a single window only the elements necessary for the execution of this specific test, and obtaining directly the results of all the calculations indicated by the standard. These windows are always designed to meet the needs of the test and the customer, upon request from the latter.
As many test standards as desired can be loaded into the same machine (Video extensometer). without any further limitation other than the maximum load capacity that the machine imposes the maximum speed, determined by the hydraulic group.
The test report will show the Standard under which the test was performed, the test parameterization, the machine data and the test results, as well as the Force/Strain graph curve.
What are the main advantages of this solution?
The optical video extensometer provides multiple advantages of which we highlight the following 4;
- No markings on the bar are required: One of the main advantages of this extensometer is that it eliminates the need to make physical marks on the bar or the test tube before starting the test. This not only simplifies preparation, but also reduces the risk of errors or damage to the material due to the marks. Additionally, it allows for more efficient work with minimal preparation, saving time and resources.
- It has a field of view (FOV or Field of View) of up to 500 mm: This wide field of view is especially useful for working with very long test pieces, as it ensures accurate measurement along their entire length. Thanks to this feature, tests can be performed on large parts without compromising the quality of the data obtained. This is essential in applications where material analysis requires working with test pieces of dimensions greater than usual.
- Automatically detects the tightening area during the test: The optical extensometer can automatically identify the area where the strain occurs, which is the point where the material begins to contract before fracturing. This automatic detection capability not only improves the accuracy of the results but also eliminates the need for manual intervention, making the process faster and more reliable.
- It simultaneously measures elongation and tightness: One of the most notable features is its ability to measure two critical parameters simultaneously during the test: elongation and strain. This allows for a comprehensive and detailed analysis of the material’s behavior without the need for additional measurements or the use of complementary equipment. This dual measurement capability optimizes the testing processes and provides more informative results.
If you want more information about the optical video extensometer Get in touch with us! Since we have a wide range of extensometers for the direct measurement of the deformations that occur in the test specimens during the tests.


