Video Extensometer – VEM 300 Series

The VEM 300 series Video extensometer from Tinius Olsen is built as a versatile platform allowing users to establish their own extensometer performance using standard technology building blocks. It can measure low or high strain in tensile, shear, compression, and flexural modes. The building blocks include lighting, camera and lens, machine frame mounting options, and data exchange options.

The VEM 300 series is directly well-matched with all Tinius Olsen testing machine frames, single, twin and four column machines, and camera staging options that include a unit that allows for fine X, Y and Z camera positioning and adjustment for ideal measuring performance. The 300 series can be mounted at the rear or front of several testing machines or free standing on a tripod.

There are more than 70 lens types to select from in the quest of a specific camera lens performance, be it field of view in which the event will occur, data capture speed, resolution and accuracy. This versatile extensometer system delivers zero gauge length error every time, rapid application of gauge marks including for the measurement of rotation to track specimen alignment during the test. Calibration is done digitally and can be confirmed at any time using a standard traceable gauge block supplied.

The VEM Video extensometer is the future of extensometery just because it is straightforward to use in research applications and as an educational tool. Test reporting is reinforced by the strain embedded video record which together with the strain mapping option offers depth to material analysis and reports.

Key Features

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

VEM-300 Series Extensometer Camera and General Purpose lens combinations HIGH STRAIN

Camera VEM Ext. model Maximum axial tensile strain range (%) at specified gauge length (mm)¹ Maximum axial compressive strain range (%) at specified gauge length (mm) ¹ Maximum transverse gauge length (mm)² Typical extension resolution (µm)³ Minimum specimen width for measurements (mm) Max. Test Speed (mm / min)²
10 25 50 100 200 10 25 50 100 200 Axial Transverse
VEM 005-0003 (15-50 Hz) VEM-010-0005 430 130 30 - - 40 40 40 - - 60 0.2 1.3 6.1 300
VEM-010-0003 700 240 90 - - 40 40 40 30 - 90 0.3 2.1 9.5 450
VEM-010-0009 - 380 150 40 - - 40 40 40 - 130 0.4 3.0 14 700
VEM-010-0002 - 570 250 90 - - 40 40 40 40 190 0.5 4.3 20 1000
VEM-010-0001 - 1000 440 180 60 - 40 40 40 40 300 0.9 6.8 31 1600
VEM-010-0008 - 1000 580 250 90 - - 40 40 40 390 1.1 8.7 28 2000
VEM-010-0000 - - 950 440 180 - - 40 40 40 600 1.7 13.7 63 3200
VEM 005-0002 (15-50 Hz) VEM-010-0004 550 180 50 - - 40 40 40 - - 60 0.3 2.1 9.7 2500
VEM-010-0003 - 310 120 30 - - 40 40 40 - 90 0.4 3.3 15 3000
VEM-010-0009 - 490 210 70 - - 40 40 40 - 130 0.6 4.8 22 5700
VEM-010-0002 - 720 330 130 30 - 40 40 40 40 190 0.9 6.8 31 8100
VEM-010-0001 - - 560 240 90 - - 40 40 40 300 1.4 10.8 50 12500
VEM-010-0008 - - 730 330 130 - - 40 40 40 390 1.8 13.9 64 16500
VEM-010-0000 - - - 560 250 - - - 40 40 600 2.8 21.8 100 26000

 

VEM-300 Series Extensometer Camera model and Materials Testing lens combinations LOW STRAIN

Camera VEM Ext. model Maximum axial tensile strain range (%) at specified gauge length (mm)¹ Maximum axial compressive strain range (%) at specified gauge length (mm) ¹ Maximum transverse gauge length (mm)² Typical extension resolution (µm)³ Minimum specimen width for measurements (mm) Max. Test Speed (mm / min)² Working Distance (mm) Max. Field of View (mm)
10 25 50 10 25 50 Axial Transverse
VEM 005-0003 (15-50 Hz) VEM-011-0053 75 - - 40 - - 19 0.07 0.4 1.7 50 300 23
VEM-010-0052 190 35 - 40 40 - 31 0.12 0.7 3.2 150 300 42
VEM-010-0051 310 80 10 40 40 25 45 0.18 1.0 4.6 200 300 61
VEM-010-0022 460 145 40 40 40 40 63 0.25 1.4 6.4 300 284 86
VEM 005-0002 (15-50 Hz) VEM-010-0053 100 5 - 40 10 - 6 0.08 0.6 2.8 700 300 29
VEM-010-0052 250 60 - 40 40 - 10 0.14 1.1 5.0 1300 300 53
VEM-010-0051 390 120 25 40 40 40 15 0.20 1.6 7.3 1900 300 77
VEM-010-0022 580 190 65 40 40 40 21 0.28 2.2 10.3 2600 284 108
VEM 005-0000 (100-1000 Hz) VEM-010-0053 50 - - 40 - - 11 0.10 0.8 3.7 1100 300 21
VEM-010-0052 150 20 - 40 40 - 21 0.19 1.5 6.8 2000 300 38
VEM-010-0051 250 60 - 40 40 - 31 0.27 2.1 9.8 3000 300 55
VEM-010-0022 - 110 23 - 40 40 43 0.38 3.0 13.8 4000 284 77

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