Tinius Olsen

VEM 300 Series

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Tinius Olsen’s VEM 300 series video extensometer is designed as a flexible platform, allowing users to define their own extensometer performance using standard technology building blocks to measure low or high strain in tensile, compression, shear and flexural modes. The building blocks consist of camera and lens, lighting, machine frame mounting options and data exchange options.
The VEM 300 series is directly compatible with all Tinius Olsen testing machine frames, single, twin and four-column machines. Camera staging options are available, including a unit that allows for fine X, Y and Z camera positioning and adjustment for optimum measuring performance. The 300 series can be mounted at the front or rear of most testing machines or free-standing on a tripod.
There are more than 70 lens types to choose from to suit specific camera lens performance, for example for data capture speed, field of view in which the event will occur, resolution and accuracy.

Extensometer Information

This versatile extensometer platform delivers zero gage length error every time and quick application of gage marks, including for the measurement of rotation to track specimen alignment during the test. Calibration is digitally embedded and can be verified at any time using a standard traceable gage block supplied.


Tinius Olsen’s VEM Video extensometer is the future of extensometery simply because it is straightforward to use, whether it is for a research application or as an educational tool. Test reporting is strengthened by the strain embedded video record which, along with the strain mapping option, gives depth to material analysis and reports.

Features & Benefits

  • Non-contacting video extensometer solution
  • System supports up to four synchronised cameras capturing data real time and simultaneously
  • Measures in tension, compression, flexural, shear modes
  • No need for bonded strain gages or multiple clip on extensometers for r&n
  • Supports axial, transverse, orthogonal and rotational measurements
  • Provides a permanent record for recall of the test in video format with full resolution embedded strain data
  • Meets the requirements of ISO 9513 class 0.5, ASTM E83 class B1 and GB/T 12160 class 0.5 proportional low strain
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