Zwick sheds new light on extension measurement with its latest extensometer

Ulm, (PresseBox) - The new lightXtens extensometer from Zwick is the perfect solution for accurate, reliable extension measurement in tensile tests on highly ductile, highly elastic and contact-sensitive materials such as elastomers, latex and all types of foils and films.
The great advantage of this extensometer is its robustness, enabling measurements to be unaffected by varying environmental conditions such as extraneous light or temperature variations. It provides accurate, non-contact strain measurement, even for non-ambient conditions in climatic chambers. Changing between room temperature and high or low temperature configuration is quick and easy.
lightXtens is also ideal when testing specimens with high fracture energy, such as straps, ropes and braided cables. These specimens tend to whip or splay out at break, with the risk of damage to typical mechanical contact measuring systems. Even under the difficult operating conditions, for example tire manufacture, lightXtens provides accurate, and reproducible results.
Operating lightXtens is extremely easy, with straightforward specimen preparation and no need to adjust or configure the optics. The test sequence is completely automatic; the gage marks are identified automatically, while the initial gage length can also be measured automatically at the specimen pre-load point during the test and transmitted to the testXpert® II test software.
In addition to being a robust extensometer, lightXtens is wear-free and very low-maintenance.

Zwick GmbH & Co. KG

The Zwick Roell Group is a global leader in automated materials and component testing systems. With 150 years of testing experience and operating worldwide, it has manufacturing facilities in Germany and distribution and customer support headquarters in Atlanta, Georgia, USA, and Singapore. As of 2006 the group has 900 employees and sells to 20 different industry sectors through a network of sales and service offices in 56 countries. For more information see

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