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  • laserXtens Compact laserXtens Compact

laserXtens Compact and Compact HP extensometers

These single-camera measuring systems are especially suitable for testing small to very small specimens. The measurement principle used requires NO gage marks and the test is a non-contact test. The system is highly accurate and easy to operate.

laserXtens Compact HP increases measuring accuracy by even compensating for lateral specimen movements, which occur in small, non-rigid specimens. 

Advantages of laserXtens Compact and Compact HP extensometers

  • laserXtens Compact/Compact HP satisfies the requirements of Class 0.5 of ISO 9513 (Class B2 of ASTM E83).
  • 0.04 µm is the resolution for laserXtens Compact HP, 0.12µm is the resolution for laserXtens Compact.
  • These laserXtens extensometer can also measure transverse strain with no need for additional markings; biaxial measurement is also possible.

laserXtens extensometer

laserXtens systems

Extensometers using laserXtens systems provide non-contact measurement of deformations on a wide range of materials. They consist of measuring heads with digital cameras and laser light-sources. The specimen is illuminated with laser light, generating a speckle pattern on the surface. When the specimen is subjected to a load the virtual gage marks are displaced and the evaluation windows are updated. laserXtens calculates the strain on the specimen from the displacement between two consecutively recorded images.

Advantages of laserXtens

  • laserXtens systems deliver high precision in the micro and macro measurement ranges.
  • Measuring principle eliminates the need to apply gage marks.
  • laserXtens can be mounted at varying distances from the specimen. A key advantage of this is that it can be used in temperature chambers.
  • In contrast to contact extensometers or pure video solutions, laserXtens systems can measure strain on short specimens (gage lengths from 1.5mm) with high accuracy.
  • laserXtens is integrated into testXpert II. Use of a separate 22“ monitor is recommended to enable the live image from laserXtens to be observed parallel to the testXpert II display.


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