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Video extensometer / Non-contact extensometer

Video extensometer / Non-contact extensometer

Model: UT1027

Video extensometer, is a non-contact real-time high-precision strain measurement system, which is based on a separate camera and real-time image processing algorithm, by taking images of the experimental process, analyzing image characteristic changes, dynamically measuring the strain changes of the specimen, accurately and quickly realizing the functions of traditional extensometers.

General introduction

UT1027 Video extensometer, is a non-contact real-time high-precision strain measurement system, which is based on a separate camera and real-time image processing algorithm, by taking images of the experimental process, analyzing image characteristic changes, dynamically measuring the strain changes of the specimen, accurately and quickly realizing the functions of traditional extensometers.


Mainly use for the test sample tensile/compression, creeping, fatigue test:
Strain (Elongation) measuring
Tensile/Compression test
Elastic modulus test
Poisson's ratio test

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Key Features

  • Technical advantages

Different with the normal contact extensometer, the feature of video extensometer is:
1, Non-contact measurement: Avoid additional effects of contact means such as strain gauges, clamping extensometers, etc. on the measurement.
2, Wide material adaptation: there is basically no restriction on the material, and special sizes and material specimens can be tested.
3, Measuring range large, um to m can tested.
4, Strain range 0.002%~ large than 1000%
5, Measuring procedure is easy and fast.
6, Free setting the standard gauge.
7, Complete procedure following, no need stop the test, breaking sample is no influence to extensometer.
8, Result have displacement, strain, Chromatogram, curve etc.,
9, Mechanical analysis of high temperature, high pressure, radiation, vibration, etc.,
10, Portable device, and test result is traceable.

Main technical specification

ModelUT1027-5A/5BUT1027-12A/12B
Resolution2592*2048@60fps4096*3000@30fps
Sampling frequency≤100fps≤200fps
Field of viewStandard 60-100mm
  (extend: 100-500mm)
Standard 60-150mm
  (extend: 150-1000mm)
Standard gauge range≤500mm≤1000mm
Strain range0.002%~ large than 1000%0.002%~ large than 1000%
Strain accuracyUpto 50μmUpto 20μm
ResolutionUpto 1μmUpto 0.5μm
Displacement accuracyUpto 2μmUpto 1μm
Standard gauge number5A≤25B≤105A≤25B≤10
Full field strain

5A (no full field)

5B (with full field option)

5A (no full field)

5B (with full field option)

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Beijing United Test Co., Ltd.