videoXtens Extensometer

videoXtens is used for optical measurement of extension on contact-sensitive and highly elastic materials.

This extensometer provides non-contact measurement of tensile, compression, and flexural deformations of all types of plastics, metals, rubber, composites, and films, as well as two-dimensional point displacements within a matrix, e.g. on components.

It is also suitable for determining change in width, r-values to ISO 10113 and ISO 10275, and offset yields in tensile tests to ISO 6892-1. Whenever international standards require a high degree of precision, videoXtens is the perfect solution. Operator influence is virtually eliminated and consistent test results are assured.

VideoXtens complete systems extensometer

Key Advantages and Features

Simple operation

  • Automatic gauge-mark recognition and acquisition of initial gauge-length L0.
  • Tamper-proof: anti-tamper paint is applied to the lenses for the complete system so nothing can be adjusted. An important requirement for reliable test results.
  • Easy alignment to the specimen: videoXtens is centrally aligned to the gauge marks via the connection to the crosshead (option).
  • Compensation for different specimen thicknesses plus testing shear specimens.
  • Wear-free system = low-maintenance. The systems also feature an extremely long service life.
  • Connection to non-ZwickRoell machines via ±10V interface.

High accuracy and repeatability

  • Extensometer mounted using stable, low-vibration holders.
  • Housing provides protection against dirt and dust and inadvertent loss of adjustment of components.
  • Exact synchronization of all measurement channels.
  • Specially developed lighting provides high-quality contrast ratios on the specimen at all times, even with varying environmental conditions.
  • Industrial-quality cameras and high-quality, low-distortion lenses
  • ZwickRoell extensometers exceed the requirements of the standards and are calibrated over the entire measurement range in their individual accuracy class to ISO 9513.
  • videoXtens 2-120 HP is calibrated with the first calibration point from as early as 20 µm in Accuracy Class 0.5, ISO 9513.
  • Additional calibration data-points for traceable, standard-compliant Young's modulus determination on plastics to ISO 527 (e.g. via additional calibration value at 25 µm) with videoXtens 2-120 HP.

Automatic centering

  • videoXtens tracks at half crosshead speed via the connection to the crosshead, keeping the testing operation automatically in focus and making optimum use of the measuring range (larger measuring range possible).
  • This results in increased system measurement accuracy; the gauge marks shift less in the image and are captured in the center of the lens (low lens distortion).

Testing without gauge marks

  • The innovative pattern-recognition algorithm allows virtual gauge marks to be applied to the specimen. The gauge marks can be changed retrospectively and re-calculated (Test Re-Run option). It doesn't get any more convenient!
  • The essential requirement is for a pattern on the specimen - either a natural pattern due to a structured surface or an artificial pattern which can quickly be applied using a marker spray or by stippling.
videoXtens HP extensometer

videoXtens 2-120 HP

videoXtens HP sets new standards in accuracy and reproducibility

videoXtens HP is the perfect solution where international standards require high accuracy. Operator influence is virtually eliminated and consistent test results are assured.videoXtens HP is a non-contact, high-resolution extensometer developed for tests which require maximum precision. Particular focus is on the following applications:

  • Plastics applications
  • Fiber composites applications
  • High resolution and measurement accuracy
Since the system employs non-contact measurement, there is no influence on the material characteristic values. Operator influence is also minimized, ensuring consistent test results.

Typical application videoXtens 2-120 HP

Including accurate measurement of tensile modulus values

Plastics to ISO 527-1 or ASTM D638

Requirements of ISO 527-1 for determination of tensile modulus: max. error ± 1 µm / ±1.5 µm when measuring the differential displacement between two measuring points (with elongation of 0.05% and 0.25% of the initial gauge length, with an initial gauge length L0 of 50 mm / 75 mm.
We recommend self-adhesive gauge marks (strips).

  • Specific advantages in this application
  • Satisfies the exacting calibration requirements for tensile modulus values to ISO 527-1, Annex C.
  • High-accuracy measurement of tensile modulus.
  • ZwickRoell extensometers exceed the requirements of the standards and are calibrated over the entire measurement range to Accuracy Class 0.5, ISO 9513.
  • Even brittle-fracturing plastics specimens can be tested without damaging the extensometer.
  • High-accuracy testing with ZwickRoell temperature chamber, including with determination of tensile modulus to ISO 527-1.
  • Enclosed system - connection via tunnel when testing in temperature chamber.
  • Resistant to environmental influences (e.g. air currents, variations in lighting); flexible tunnel minimizes signal interference.
  • Optimum, uniform specimen illumination by LEDs incorporated into the tunnel.

 

 

 

 

Fiber composites

  • Tensile tests on filament strands and laminates of fiber composites, e.g to ISO 527-4/5, ASTM D3039, ASTM D4018
  • In-plane shear tests (±45° method). In-plane shear response to ISO 14129 and ASTM D3518 (software option Second Measurement Axis required).
  • Specific advantages in this application
  • Brittle-fracturing fiber composites can be tested up to break without damaging the extensometer.
  • Accuracy Class 0.5 to EN ISO 9513. ZwickRoell extensometers exceed the requirements of the standards and are calibrated over the entire measurement range to Accuracy Class 0.5, ISO 9513.
  • Accuracy Class B1 to ASTM E83 from a gauge-mark separation of 15mm.
  • High-accuracy testing with ZwickRoell temperature chamber, including with determination of tensile modulus to ISO 527-1.
  • Enclosed system - connection via tunnel when testing in temperature chamber.
  • Resistant to environmental influences (e.g. air currents, variations in lighting); flexible tunnel minimizes signal interference.
  • Optimum, uniform specimen illumination by LEDs incorporated into the tunnel.

High resolution and measurement accuracy

  • Calibration requirements for tensile modulus values to ISO 527-1, Annex C
  • Accuracy class B1 to ASTM E83 from a gauge mark distance of 15 mm
  • Accuracy class 0.5 to EN ISO 9513. ZwickRoell extensometers exceed the requirements of the standards and are calibrated over the entire measurement range to ISO 9513 in accuracy class 0.5
  • Highly accurate testing with ZwickRoell temperature chamber, even for determination of the tensile modulus to ISO 527-1
testControl [tC II]_Screw_2.5 kN_videoXtens_1-120_+FO

videoXtens 1-120

The videoXtens 1-120 is a non-contact, camera-based measuring system. It is used for standard specimen with small to medium extension, such as sheet metals to ISO 6892 or plastics to ISO 527.

Typical application videoXtens 1-120

ISO 527-1 without tensile modulus determination

  • Specific advantages in this application
  • Simple, compact system for determination of strain at yield stress (curve types b & c).
  • Even brittle-fracturing plastics specimens can be tested without damaging the extensometer.

Testing of sheet metals A50 or A80 to ISO 6892

  • Method B or A2, without r-value determination
  • e.g. for determination of Rp0.2, Ag, A
  • Specific advantages in this application
  • Compact system for easy testing to standard - with total absence of specimen contact
  • No influence on specimens: thin metal sheets or metal foils are sensitive to contact, making the non-contact videoXtens the ideal solution. It has no influence on material characteristic values.

Tensile test on geotextiles / geogrids to DIN EN ISO 10319

  • videoXtens can measure extremely wide specimens. As videoXtens is non-contacting specimens width is irrelevant.
  • Even specimens prone to whipping can be tested without damaging the extensometer.
  • Pattern recognition eliminates the need for specimen marking.
  • Modulus values can also be determined in the initial range, e.g. gradient at x% strain.
videoXtens 1-270 Extensometer

videoXtens 1-270

The videoXtens 1-270 covers a wide measurement range and is therefore excellent for high-extension materials.

  • Non-contact measurement system: No influence on the material characteristics
  • No influence on sensitive specimen
  • Ideal for whipping specimen - the videoXtens will not be damaged
  • Through connection to the crosshead, the gauge marks are always automatically centered in the field of view (FOV)—the measurement range is optimally utilized.
  • Mounting with low-vibration, stable support brackets. Easy alignment with the measurement range through the ergonomic height adjustability on the mounting.

Typical application videoXtens 1-270

Elastomer testing to ISO 37, ASTM D412 or DIN 53504

  • L0 = 10, 20 or 25 mm
  • Specific advantages in this application
  • Connection to crosshead ensures the gauge marks are always central and optimum use is made of the measuring range.
  • Unimpeded view of the specimen; no blind spot due to specimen grips - videoXtens is centrally aligned and tracked.
  • Accuracy Class 1: modulus values can also be determined in the initial range, e.g. stress at 10% strain.
  • Large measuring range.
  • Specimen whips at break and may damage contact-type systems.
  • Sensitive specimens are not affected by knife-edges - non-contact testing.
  • High accuracy, including at temperature with ZwickRoell temperature chamber in range from -55 to +250°C.
  • Enclosed system - connection via tunnel when testing in temperature chamber.

Rope testing (textiles)

  • Specific advantages in this application
  • Connection to the crosshead ensures the gauge marks are always central and optimum use is made of the measuring range.
  • Unimpeded view of the specimen; no blind spot due to specimen grips - videoXtens is centrally aligned and tracked.
  • Accuracy Class 1: modulus values can also be determined in the initial range, e.g. stress at 10% strain.
  • Large measuring range.
  • Specimen whips at break and may damage contact-type systems.
  • Sensitive specimens are not affected by knife-edges - non-contact testing.
  • High accuracy, including at temperature with ZwickRoell temperature chamber in range from -55 to +250°C.
  • Enclosed system - connection via tunnel when testing in temperature chamber.

Films testing to ISO 527-3

  • Specific advantages in this application
  • Accuracy Class 1 (from measurement travel 0.24 mm at least), allowing modules to be determined in the initial range also.
  • Sensitive specimens are not affected by knife-edges - non-contact testing.
  • Pattern recognition: a pattern is quickly generated over the entire specimen by stippling or stamping.
  • Connection to crosshead ensures the gauge marks are automatically always central and optimum use is made of the large measuring range.
  • Outflow of the film specimens during the test does not restrict the measuring range and does not therefore need to be allowed for.
  • Time-saving for research: no specimens are wasted due to break outside L0. Test Re-Run option and pattern recognition allow L0 to be adjusted retrospectively and the test re-calculated so that the break then lies within L0. Alternative: the strain distribution also included in this option automatically positions L0 around the area of highest strain if multiple gauge marks were placed before the test.
testControl II_Hydraulik-PH_250 kN_Typ 8594_videoXtens 3-300

videoXtens 3-300

videoXtens 3-300 - innovative and unique

  • videoXtens 3-300 includes three high-resolution cameras. The innovative ZwickRoell array technology combines the fields of view. This provides one large field of view with high resolution.
  • Unique: Through connection to the crosshead, the gauge marks are always automatically centered in the field of view (FOV)—the measurement range is optimally utilized.-> even when an extreme amount of material slips out of the specimen grips, the measurement range is not restricted.

Optimal interaction and high level of accuracy of the entire testing system

  • Mounting with low-vibration, stable support brackets. Easy alignment with the measurement range through the ergonomic height adjustability on the mounting.
  • videoXtens and the ZwickRoell temperature chamber are optimally adapted to each other. Temperature control and air distribution in the temperature chamber are optimized in such a way that the videoXtens resolution is only minimally affected, even at temperature.

Every specimen counts

  • Cost savings in specimen material: No specimen is wasted due to break outside of L0. With the test re-run option and pattern recognition L0 can be moved retrospectively and the test can be recalculated, whereby the break then lies within the L0.
  • Alternative: Strain distribution in the above-mentioned option automatically sets the L0 in the range of the highest strain, if various gauge marks were set prior to the test.

Typical application videoXtens 3-300

Films testing to ISO 527-3

  • Specific advantages in this application
  • High measuring range combined with high resolution.
  • Versatile: the videoXtens 3-300's high measuring range and high resolution allow it to be used for other tests also.
  • Sensitive specimens are not affected by knife-edges - non-contact testing.
  • Pattern recognition: a pattern is quickly generated over the entire specimen by stippling or stamping.
  • Connection to crosshead ensures the gauge marks are automatically always central and optimum use is made of the large measuring range.
  • Outflow of the film specimens during the test does not restrict the measuring range and does not therefore need to be allowed for.
  • Time-saving for research: no specimens are wasted due to break outside L0. Test Re-Run option and pattern recognition allow L0 to be adjusted retrospectively and the test re-calculated so that the break then lies within L0. Alternative: the strain distribution also included in this option automatically positions L0 around the area of highest strain if multiple gauge marks were placed before the test.

Determination of elongation at break of belts

  • e.g. L0: 100 mm or 200 mm
  • Specific advantages in this application
  • Connection to crosshead ensures the gauge marks are automatically always central and optimum use is made of the large measuring range. Although an extremely large amount of material runs out of the specimen grips, the measuring range is not restricted.
  • No specimen marking required thanks to pattern recognition. This uses the natural texture of the specimen.
  • Specimens are extremely prone to whipping - no damage to extensometer at break, entire test can be tracked.
  • Transverse strain can also be measured via the Second Measurement Axis software option. For example, in the case of belts which spread under tensile load due to the fabric structure.
  • No specimens are wasted due to break outside L0: Test Re-Run option and pattern recognition allow L0 to be adjusted retrospectively and the test re-calculated so that the break then lies within L0. Alternative: the strain distribution also included in this option automatically positions L0 around the area of highest strain if multiple gauge marks were placed before the test.

ISO 6892 Method B or A2 + r-value

  • Specific advantages in this application
  • Versatile: the videoXtens 3-300's high measuring range and high resolution allow it to be used for other tests also.
  • No influence on specimens: aluminum specimens or metal foils are sensitive to contact, making the non-contact videoXtens the ideal solution. It has no influence on material characteristic values.
  • Connection to crosshead ensures the gauge marks are automatically always central and optimum use is made of the large measuring range.
  • The additional camera for change-in-width measurement (including r-value determination option) is always trained automatically on the center of the field of view and therefore on the specimen center.
  • More accurate determination of change in width: width is measured at precisely the location on the specimen established initially via measuring lines, e.g. centrally between the gauge marks. Up to 10 measuring lines can be defined for change-in-width measurement.

Concrete-reinforcing steel testing to DIN 488, ISO 15630

  • e.g. Le 100 mm
  • Specific advantages in this application
  • High measuring range combined with high resolution.
  • No specimen marking required: the natural pattern on the specimen (ridges) is used to form virtual gauge-marks.
  • Saving on specimen material cost: no specimens wasted due to breaks outside L0. Test Re-Run option and pattern recognition allow L0 to be adjusted retrospectively and the test re-calculated so that the break then lies within L0. Alternative: the strain distribution also included in this option automatically positions L0 around the area of highest strain if multiple gauge marks were placed before the test.
  • Brittle-fracturing specimens: no damage to extensometer at break thanks to non-contact measurement.
  • Automatic centering: extensometer tracks via connection to crosshead. This also results in a larger measuring range and the system is automatically positioned centrally to the gauge length at all times.
videoXtens 1-32 HP/TZ

videoXtens 1-32 HP/TZ

The videoXtens 1-32 HP/TZ includes one camera, one green LED light source for measurement at very high temperatures, and one telecentric lens for reduction of distance changes between the lens and specimen. The non-contact extensometer optically measures deformations in different environmental conditions in a temperature range up to 1,400°C. Based on the measurement principle, application of temperature-resistant measurement gauges is necessary.

For tests in combination with temperature chambers and high-temperature furnaces, the videoXtens 1-32 HP/TZ is equipped with an adjustable tunnel. This tunnel minimizes interfering factors such as air currents between the camera and specimen.

Typical application videoXtens 1-32 HP/TZ

Metals testing to ISO 6892-2

  • Specific advantages for this application:
  • Strain-rate controlled tests to ISO 6892-2 (high temperature) and to ISO 6892-1 (room temperature) Method A1 (closed loop).
  • Automatic gauge-mark recognition and acquisition of initial gage-length L0.
  • Exact synchronization of all measurement channels.
  • Minimization of environmental influences (e.g. air currents, variations in lighting) through the high temperature tunnel.
  • Optimal and uniform illumination of the specimen with integrated LEDs.
  • Specimens with structured surfaces can be measured via pattern recognition with no need for additional marks.
  • The entire test sequence can be followed on-screen.
  • Video Capturing: specimen recording is synchronized with the measured curve for retrospective viewing of test.
  • Wear-free, and therefore low-maintenance system.
  • Green light and corresponding filters minimize the influence of the glowing specimen.

Glass testing

  • Specific advantages for this application:
  • videoXtens 1-32 HP/TZ is suitable for high-temperature tensile testing on sensitive, as well as transparent specimens such as glass.
  • Sufficient contrast for measurement of transparent specimens through specimen marking with aluminum-oxide powder.
  • No mechanical influence on a soft specimen through optical measuring. Contact extensometers would deform the specimen through the application of sensor arms (lateral force).

Micro specimen testing

  • Specific advantages for this application:
  • Very small initial gauge lengths (from 1.5 mm) are only possible with optical measurement technology.
  • Variable initial gauge lengths with videoXtens 1-32 HP/TZ.
  • Automatic gauge-mark recognition and acquisition of initial gage-length L0.
  • Exact synchronization of all measurement channels.
  • Minimization of environmental influences (e.g. air currents, variations in lighting) through the high temperature tunnel.
  • Optimal and uniform illumination of the specimen with integrated LEDs.
  • Specimens with structured surfaces can be measured via pattern recognition with no need for additional marks.
  • Entire test sequence can be followed on-screen.

videoXtens in Use

7:42

Ribbed steel test with 2-camera videoXtens extensometer

The test re-run software options and strain distribution facilitate measurement across the entire length of the specimen and a subsequent recalculation of the strain

Software Options 

testXpert III testing software offers various options for precise, traceable non-contact extension and strain distribution measurement. 

Test re-run

The optional Test Re-Run module enables retrospective recalculation of strain using an image series recorded during a test but employing a different initial gauge-length (provided multiple marks are present). This can be particularly advantageous in component testing, for example, when it is necessary to evaluate local strain at different locations, or in standard tensile tests when specimen necking has occurred outside the original initial gauge-length.

The recalculated strain can naturally be synchronized retrospectively with the other measured values via the testXpert testing software.

Strain distribution

The Strain Distribution option enables determination of local strains at multiple measuring locations along the specimen gauge-length. These are available as channels in testXpert. Up to 16 measuring locations are automatically recognized and evaluated during the test. This option also allows automatic real-time symmetrical adjustment of the initial gauge-length around the necking (to ISO 6892-1, Annex I).

Video Capturing

Video capture is a recording of the test (without retrospective recalcualation). The recording is synchronized with the measured curve, enabling the test to be viewed retrospectively. The option includes no hardware, as recording and synchronization take place entirely via the videoXtens system.

2D dot matrix

This option allows two-dimensional measurement of dots applied to a planar specimen surface. This enables determination of local strains and specimen inhomogeneities under load. X and Y coordinates, as well as the distances between dots, are available as measured values.

Up to 100 measurement dots can be measured in any desired arrangement or in matrix form. Display in testXpert III is limited to 15 channels.

This option uses only one camera for measurement; any other cameras present are switched off beforehand.

Second measurement axis option 

With this option, biaxial measurements can be performed: In addition to the longitudinal strain, transverse strains can also be recorded—for example the change in width. Alternatively, change in width can of course also be measured alone.

  • Two versions are available for measurement of transverse strain:
  • Direct measurement on the specimen edge without additional markings (required for the determination of the r-value). For this version a backlight is required.
  • Measurement of the specimen surface with dot markings or sprayed-on pattern. For this version the specimen is illuminated with an incident light lamp.

Deflection measurement 

videoXtens can also be used for flexure tests. There are several options for measuring specimen deflection, depending on the type of test and the specimen condition and properties:

  • Measurement using incident light via marks on the specimen
  • Measurement using backlight on the specimen lower edge
  • Measurement of deflection in the test axis or of the polynomial approximation of the curve

Maximum deflection that can be measured: with videoXtens the maximum deflection corresponds to the FOV; with videoXtens Array to 1/3 of the total FOV (in this case deflection is measured with one camera only).

Technical Overview

videoXtens 2-120 HP

Type

videoXtens 2-120 HP

Item No.

1034953

Field of view (FOV)

With test area width 440 mm [AllroundLine] and zwickiLine

Min. 120 x 50

mm

With test area width 640/1040 mm [AllroundLine]

Min. 140 x 60

mm

Initial gauge length

With test area width 440 mm [AllroundLine] and zwickiLine

5 ... 100

mm

With test area width 640/1040 mm [AllroundLine]

5 ... 110

mm

Measurement travel, max.

With test area width 440 mm [AllroundLine] and zwickiLine

110 - initial gauge length

mm

With test area width 640/1040 mm [AllroundLine]

130 - initial gauge length

mm

Measurement travel, max. at 50 mm initial gauge length

With test area width 440 mm [AllroundLine] and zwickiLine

60 (120 % strain)

mm

With test area width 640/1040 mm [AllroundLine]

80 (160 % strain)

mm

Measurement travel, max. at 75 mm initial gauge length

With test area width 440 mm [AllroundLine] and zwickiLine

35 (45 % strain)

mm

With test area width 640/1040 mm [AllroundLine]

55 (75 % strain)

mm

Resolution at ambient temperature

0.15

µm

Resolution to ISO 9513 in ZwickRoell temperature chamber

At -20 ... +250 °C

Max. 0.4

µm

At -40 °C

Max. 0.6

µm

At -55 °C

Max. 0.8

µm

Frame rate / maximum measured-value acquisition-rate, max.

500

fps / Hz

Test speed, max.

1000

mm/min

Dimensions

Height

250

mm

Width

375 ... 625

mm

Depth

91

mm

Tunnel length, starting at reference plane

90 ... 340

mm

Specimen thickness

0 ... 20

mm

Weight (incl. tunnel), approx.

10

kg

Accuracy class

To EN ISO 9513

0.5

To ASTM E83

B1 from gauge length 15 mm

Scope of delivery

Measuring head with 2 digital cameras including 2 lenses

Tunnel for minimizing negative environmental conditions (e.g. air currents) with integrated LED illumination

Software for image acquisition and evaluation

Accessory case with alignment and marking aids

INC module (for tC: RS module)

videoXtens 1-120

Type

videoXtens 1-120

Item No.

1043969

Field of view (FOV)

With test area width 440 mm [AllroundLine] and zwickiLine

120 x 95

mm

With test area width 640/1040 mm [AllroundLine]

150 x 120

mm

Initial gauge length

With test area width 440 mm [AllroundLine] and zwickiLine

5 ... 100

mm

With test area width 640/1040 mm [AllroundLine]

5 ... 120

mm

Measurement travel, max.

With test area width 440 mm [AllroundLine] and zwickiLine

110

mm - initial gauge length [mm]

With test area width 640/1040 mm [AllroundLine]

140

mm - initial gauge length [mm]

Measurement travel, max. at 50 mm initial gauge length

With test area width 440 mm [AllroundLine] and zwickiLine

60 (120 % strain)

mm

With test area width 640/1040 mm [AllroundLine]

90 (180 % strain)

mm

Measurement travel, max. at 75 mm initial gauge length

With test area width 440 mm [AllroundLine] and zwickiLine

35 (45 % strain)

mm

With test area width 640/1040 mm [AllroundLine]

65 (85 % strain)

mm

Measurement travel, max. at 80 mm initial gauge length

With test area width 440 mm [AllroundLine] and zwickiLine

30 (35 % strain)

mm

With test area width 640/1040 mm [AllroundLine]

60 (75 % strain)

mm

Resolution at ambient temperature

With test area width 440 mm [AllroundLine] and zwickiLine

0.5

µm

With test area width 640/1040 mm [AllroundLine]

0.6

µm

Resolution to ISO 9513 in ZwickRoell temperature chamber

At -20 ... +250 °C

Max. 0.6

µm

At -40 °C

Max. 0.9

µm

At -55 °C

Max. 1.2

µm

Frame rate / measured-value acquisition-rate, max.

500

fps / Hz

Test speed, max.

1000

mm/min

Dimensions

Height

175

mm

Width

306

mm

Depth

91

mm

Specimen thickness

0 ... 20

mm

Weight, approx.

7.5

kg

Accuracy class

To EN ISO 9513

1

Scope of delivery

Measuring head with digital camera

Lens (25 mm)

Software for image acquisition and evaluation

Accessory case with alignment and marking aids

INC module (for tC: RS module)

videoXtens 1-270

Type

videoXtens 1-270

Item No.

1043968

Field of view (FOV)

with test area width 440 mm [AllroundLine] and zwickiLine

270 x 215

mm

with test area width 640 / 1040 mm [AllroundLine]

330 x 260

mm

Initialgauge length

with test area width 440 mm [AllroundLine] and zwickiLine

5 to 220

mm

with test area width 640 / 1040 mm [AllroundLine]

5 to 260

mm

Measurement travel, max.

with test area width 440 mm [AllroundLine] and zwickiLine

260

mm - initial gauge length [mm]

with test area width 640 / 1040 mm [AllroundLine]

320

mm - initial gauge length [mm]

Measurement travel, max, with initial gauge length 10 mm

with test area width 440 mm [AllroundLine] and zwickiLine

250 (2500 % elongation)

mm

with test area width 640 / 1040 mm [AllroundLine]

310 (3100 % elongation)

mm

Measurement travel, max, with initial gauge length 20 mm

with test area width 440 mm [AllroundLine] and zwickiLine

240 (1200 % elongation)

mm

with test area width 640 / 1040 mm [AllroundLine]

300 (1500 % elongation)

mm

Measurement travel, max, with initial gauge length 25 mm

with test area width 440 mm [AllroundLine] and zwickiLine

235 (940 % elongation)

mm

with test area width 640 / 1040 mm [AllroundLine]

295 (1180 % elongation)

mm

Resolution at room temperature

with test area width 440 mm [AllroundLine] and zwickiLine

0.9

µm

with test area width 640 / 1040 mm [AllroundLine]

1.2

µm

Resolution to ISO 9513 in ZwickRoell temperature chamber

at -20 to +250 °C

max. 1.0

µm

at -40 °C

max. 1.3

µm

at -55 °C

max. 1.5

µm

Image rate / measured-value acquisition rate, max.

500

fps / Hz

Max. test speed

1000

mm/min

Dimensions

Height

175

mm

Width

306

mm

Depth

91

mm

Specimen thickness

0 to 20

mm

Weight, approx.

7.5

kg

Accuracy class

with test area width 440 mm [AllroundLine] and zwickiLine

to EN ISO 9513.

1

with test area width 640 / 1040 mm [AllroundLine]

to EN ISO 9513.

1 from measurement travel 0.24 mm

Scope of delivery

Measuring head with digital camera

Lens (12 mm)

Lens correction target

12 x 12

mm

Software for image acquisition and evaluation

Accessory case with alignment and marking aids

INC module (RS module for tC)

videoXtens 3-300

Type

videoXtens 3-300

Item No.

1043970

Field of view (FOV)

with test area width 440 mm [AllroundLine]

320 x 110

mm

with test area width 640 / 1040 mm [AllroundLine]

300 x 90

mm

Initialgauge length

with test area width 440 mm [AllroundLine]

5 to 250

mm

with test area width 640 / 1040 mm [AllroundLine]

5 to 240

mm

Measurement travel, max.

with test area width 440 mm [AllroundLine]

310 - initial gauge length

mm

with test area width 640 / 1040 mm [AllroundLine]

290 - initial gauge length

mm

Resolution at room temperature

0.5

µm

Resolution to ISO 9513 in ZwickRoell temperature chamber

at -20 to +250 °C

0.6

µm

at -40 °C

0.9

µm

at -55 °C

1.2

µm

Distance between extensometer reference plane and center of test axis:

table-top testing machine, test-area width 440 mm

450

mm

table-top/floor-standing testing machine, test-area width 640/1040 mm

570

mm

Image rate / measured-value acquisition rate, max.

500

fps / Hz

Max. test speed

1000

mm/min

Dimensions

Height

350

mm

Width

415

mm

Depth

140

mm

Specimen thickness

0 to 20

mm

Weight (incl. tunnel), approx.

15

kg

Accuracy class

to EN ISO 9513.

1

Scope of delivery

Measuring head with 3 digital cameras incl. 3 lenses and optical filter disc

Software for image acquisition and evaluation

Accessory case with alignment and marking aids

INC module (RS module for tC)

videoXtens 1-32 HP/TZ

Type

videoXtens 1-32 HP/TZ

Initial gauge length

1.5 … 32

mm

Measurement displacement

For fixed assembly

32 mm - initial gauge length

For automatic entrainment

2 * (32 - initial gauge length)

Resolution

0.25

µm

Accuracy class to EN ISO 9513

0.5

Temperature range

-150°C ... +1,400°C

Measurement frequency for standard setup

70

Hz

Measurement speed, max. at measurement point

500

mm/min

Scope of delivery

Measuring head with one digital camera incl. high resolution telecentric lens, interference filter, green LED incident light lamp, high temperature tunnel for reduction of environmental influences, software for image acquisition, accessory case with scaling aid, INC module (for tC: RS module). Incl. connection to crosshead; the extensometer tracks at half test speed.

High-Accuracy Testing in the Temperature Chamber 

The testing machine including temperature chamber features convenient, intuitive operation via the testing software. All components (materials testing machine, extensometer, and testing software) are developed in-house at ZwickRoell.
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