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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)

Standard

ISO 37 Tensile Test on Rubber, vulcanized or thermoplastic

ISO 37 and ASTM D412 are both widely recognized tensile test methods designed to evaluate the stress-strain characteristics of various rubber materials, including natural rubber, synthetic rubber, silicone rubber, and thermoplastic elastomers (TPEs). While both standards aim to determine the tensile properties of rubber and elastomers, they differ in their specific methodologies and applications.

ASTM D638 Tensile Testing for Plastics

ASTM D638 determining the tensile properties of unreinforced and reinforced plastics using dumbbell-shaped (dogbone) specimens tested under closely controlled conditions of conditioning, temperature, humidity, and crosshead speed. For measuring the tensile mechanical properties of unreinforced and reinforced plastics, including thermoplastics, thermosets, molded plastics, and plastic composites.

ISO 527-4, ISO 527-5 Tensile Test on fibre-reinforced Composites

ISO 527-4 and ISO 527-5 are two key standards within the ISO 527 series for determining the tensile properties of fibre-reinforced plastic composites. 

ISO 527-4 covers the general principles and tests for isotropic and orthotropic materials. ISO 527-5 provides specific procedures for testing unidirectional fiber-reinforced composites.


These standards are critically important because they provide a unified, reliable method to measure fundamental mechanical properties (like tensile strength, modulus, and strain) which are essential for material selection, quality control, structural design, and R&D in aerospace, automotive, wind energy, and sports equipment industries.


ISO 527-3 Tensile Test on Plastic Film

ISO 527-3 Plastics - TENSILE PROPERTIES - PART 3: FOR FILMS AND SHEETS

ISO 527-3 is a common international standard that is used to determine the tensile properties of plastic film or sheeting - a plastic test specimen with a thickness less than 1 mm. The tensile properties include tensile strength, yield strength, yield strain, strain at break, and in some cases Young's Modulus. Due to the flexible, delicate nature of these plastic specimens, both gripping and strain measurement can be a challenge.


ISO 527-3 Tensile Test of Plastic Thin Film Sheet

It covers the specimen preparation requirements of thin plastic sheets and films. Thin plastic specimens created with the practices of ISO 527-3 are tensile tested with the practices of ISO 527-1. Thin plastic specimens created in accordance with ISO 527-3 are cut, or punched from a sheet of thin plastic. ISO 527-3 specifies that thin plastic film of sheet specimens must be free from cracks or scratches that will affect the tensile test. ISO 527-3 allows for four specimen geometries that can be used for tensile testing. There are three acceptable dogbone shaped specimens that are acceptable. Specimen created following ISO 527-3 can be used to determine the tensile properties of thin plastic sheets and films including the tensile modulus of elasticity and the tensile energy to break (TEB).


ISO 527-1, ISO 527-2 Tensile Test of Plastics Composites & plastics

ISO 527-1 covers the test procedures for determining tensile properties of plastics and plastic composites. Tensile properties of plastics that are determined through the practices of ISO 527-1 include tensile strength, tensile modulus and other properties related to stress strain characteristics of plastic materials. 

ISO 527-2 specifies the test conditions for determining the tensile properties of moulding and extrusion plastics, based upon the general principles given in ISO 527-1. The methods described in ISO 527-2 are selectively suitable for use with the following range of materials: rigid and semi-rigid thermoplastics moulding, extrusion and cast materials, including compounds filled and reinforced by, for example, short fibres, small rods, plates or granules but excluding textile fibres (see ISO 527-4 and ISO 527-5).

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