zwickiLine for Flexible Low-Force Testing.
The videoXtens 2-120 HP sets new standards in accuracy and reproducibility. If high precision is required for strain measurement on plastics and fiber-reinforced composites, the videoXtens 2-120 HP is the perfect non-contact solution.
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).
Fiber composites
High resolution and measurement accuracy
Simple operation
High accuracy and repeatability
Automatic centering
Testing without gauge marks
testXpert III testing software offers various options for precise, traceable non-contact extension and strain distribution measurement.
Test re-run
The optional Test ReRun module enables subsequent recalculation of strain on the basis of an image series recorded during a test, using a different initial gauge-length (provided multiple markings 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.
Automatic symmetrical adjustment of strain around necking to ISO 6892-1, Annex IThe recalculated strain can, of course, be synchronized subsequently with the other measurement 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.
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:
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).
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) |