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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 specifies the test conditions for determining the tensile properties of plastic films and sheets with a thickness less than 1 mm, based on the general principles of ISO 527-1. Provides standardized procedures to measure critical mechanical parameters including tensile strength, yield strength, elongation at break, and Young's modulus for thin plastic materials. It is critically important because thin films behave very differently under stress compared to rigid plastics; they are more prone to tearing, slipping, and deformation. By standardizing the test conditions, this document ensures that material specifications, quality control, and research data are globally comparable and reliable.  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).

ISO 15024 DCB Mode I Interlaminar Fracture Toughness (GIC) Testing of Fibre-reinforced plastic composites –

ISO 15024 Fibre-reinforced plastic composites. Determination of mode I interlaminar fracture toughness, GIC, for unidirectionally reinforced materials

ISO 15024 specifies the double‑cantilever‑beam (DCB) test for measuring Mode‑I interlaminar fracture toughness GIC (critical energy release rate, unit: J/m²), which quantifies material resistance to opening‑mode delamination crack initiation and growth between composite plies. 

ASTM D5766 open-hole tensile test for composite laminates –

ASTM D5766 Standard Test Method for Open Hole Tensile Strength of Polymer Matrix Composite Laminates

ASTM D5766 for measuring the open‑hole (notched) tensile strength (OHT) of a multi‑directional fiber‑reinforced polymer composite laminate — essentially a ASTM D3039 tensile coupon with a precision‑machined hole in the middle, pulled to failure in uniaxial tension.It quantifies the notch effect from a central through‑hole, simulating fastener cut‑outs in real composite structures.

ASTM D3039 Tensile Testing of Polymer Composites –

ASTM D3039 Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials

ASTM D3039 defines a unified procedure to measure the in-plane tensile properties of high-modulus fiber-reinforced polymer matrix composites (PMC). It applies exclusively to continuous or discontinuous fiber-reinforced laminates that are balanced and symmetric with respect to the test direction.  

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