Precise Performance

The MTS Advantage Optical Extensometer performance combines the latest in optical and algorithmic measurement techniques to deliver the high resolution, data rates and accuracy needed for uniaxial testing.

Resolution

<0.5 μm quasistatic
<2.5 μm dynamic
<0.1 μm creep; typical RMS resolution at typical settings. Resolution is a function of the optics and filter settings. 

Extensometer Accuracy Class

ISO 9513 Class 0,5 and ASTM E83 Class B-1 or better, typical, for gage lengths ≥10 mm

Real-time data rate: 300-3000 Hz

As a result, the MTS Advantage Optical Extensometer is equipped with the accuracy and fine resolution required to measure modulus, offset yield, stress-strain curves, and strain at failure for both low and high modulus materials.

Strain Measurement of Composites, Metals & Ceramics

The MTS AOX models with telecentric lenses are engineered to provide the accuracy and fine resolution required for testing high-modulus materials such as metals, composites, ceramics, and CMCs:

• Equipped to measure modulus, offset yield, stress-strain curves, and strain at failure for all these materials
• Typical resolution <0.5 μm quasistatic, <2.5 μm dynamic, <0.1 μm creep; typical RMS resolution at typical settings. Resolution is a function of the optics and filter settings. 
• Extensometer Accuracy Class: ISO 9513 Class 0.5 and ASTM E83 Class B-1 or better, typical, for gage lengths ≥10 mm
• Typical resolution at selected filter settings and rigid, well-aligned grips are recommended for these applications.

Strain Measurement of Plastics & Elastomers

The MTS AOX-500CE optics option can measure more than 1000% strain (500 mm field-of-view and 10 or 25 mm gage length):

• Optics and data processing algorithms ensure that specimen marks are tracked even when their contrast is reduced due to specimen extension
• Conventional entocentric lens – recommended for high elongation applications and for measuring strain values of ~2% or greater; suitable for smaller strains in some applications 

Strain Measurement of Foil, Wire & Polymer Films

Non-contact strain measurement is the best way, and sometimes the only way, to measure strain with delicate, fine, and thin specimens. Use the AOX extensometer to measure modulus, offset yield, stress-strain curves, and elongation to break with wire, metal foil, polymer film, high-modulus fibers, and polymer filaments:

• Depending on the specimen’s total elongation, the MTS AOX-200CE can accommodate gage lengths between 10-180 mm 
• Ultra-high camera resolution, real-time data rates up to 3000 Hz, and signal processing techniques provide high strain resolution and accuracy with the lowest noise.

MTS ADVANTAGE™ OPTICAL EXTENSOMETER (AOX) BROCHURE

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