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Epsilon ONE® Optical Non-Contact Extensometers

Epsilon ONE® Optical Non-Contact Extensometers
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Epsilon ONE® Optical Non-Contact Extensometers - 1

Optical Non-Contact Extensometers Breakthrough Performance • Easy to Use • Works With Any Test Machine Epsilon ONE high-precision optical extensometers measure axial strain with industry-leading resolution, accuracy, and speed. Innovative Instant Reset, Always On and Laser Alignment features maximize performance and increase testing throughput. Composites, Metals, Ceramics Plastics, Elastomers Foil, Wire, Polymer Films Non-Contact Strain Measurement with an Environmental Chamber Many more... Epsilon ONE optical non-contact extensometers perform high-accuracy, high-resolution, non-contacting axial strain and displacement measurement. These extensometers are suitable for testing highEpsilon ONE - Model ONE-78PT-System with carbon fiber composite specimen modulus materials such as metals and composites, high-elongation materials, thin or delicate specimens, cyclic fatigue, strain controlled testing, deflectometer applications, and measuring crack opening displacements. Strain or extension is measured and output in real time. Epsilon ONE’s high resolution and ISO 0,5 / ASTM B-1 accuracy classes make it suitable for non-contact measurement of a wide range of strain values, from very small strains required to measure modulus of metals, composites, ceramics and CMCs through elastomers and everything in between. Class-leading accuracy and resolution are achieved by Epsilon’s comprehensive optical path optimization, a unification of several optical technologies and signal processing algorithms. Ultra-high camera resolution, real-time data rates up to 3000 Hz, minimization of optical error sources, and signal processing techniques provide high strain resolution and accuracy with the lowest noise. No other system on the market combines all of these technologies. The Laser-Assist Alignment System provides an instant alignment and distance spot check. Epsilon ONE will project pre-aligned laser lines on the specimen before the test, revealing any misalignment. During the test, high precision telecentric lenses on the PT models eliminate errors due to out-of-plane movements – a common source of errors for many video extensometers. Epsilon ONE arrives factory calibrated – there are no calibration grids or gauge length bars, saving a great deal of time. The system sets up for new specimen types in minutes and requires very little training or skill to use. The desktop user interface software and optional Touch Interface provide continuous digital readouts and status information. Epsilon ONE was designed for the fastest specimen cycle times. Auto-start repetitive tests without any software interaction; Epsilon ONE is always running, and its Instant Reset and Automatic Mark Detection eliminate software start/stop interactions common with video extensometers. Epsilon ONE fits all types of materials testing machines. The system may be used with environmental chambers that are equipped with a window – contact Epsilon. See Epsilon ONE extensometer videos Visit our website at www.eps

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Epsilon ONE® Optical Non-Contact Extensometers - 2

• Always on, always ready: Unlike DIC systems, software interactions are unnecessary when running repetitive tests. What sets Epsilon ONE® apart? • Always real-time: Post-processing is never required, even at the highest data rates. Resolution, Accuracy, Speed Epsilon ONE’s performance is a result of optics and algorithm technologies that combine for high resolution, data rates and accuracy: Resolution: <0.5 µm quasistatic, <2.5 µm dynamic, <0.1 µm creep; Typical RMS resolution at typical settings. • Faster throughput with Instant Reset: Auto-start repetitive tests without touching the...

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Epsilon ONE® Optical Non-Contact Extensometers - 3

Epsilon ONE® Optical Non-Contact Extensometers, continued Specifications Optics Packages ONE-78PT-System Premium Precision Telecentric Optics Field of View: 50-500+ mm. See specific optics packages; contact Epsilon for other options. Real-Time Data Rate: 300-3000 Hz, >2000 Hz typical; includes image frame rate, analysis, analog output, and digital output Strain Outputs: Output: ±10V, short-protected, selectable units and range; includes 2.4 m (8 ft) shielded output cable Analog Digital Output: 16-64 bit typical over RS232; includes 1.8 m (6 ft) shielded null modem cable Resolution: µm...

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Epsilon ONE® Optical Non-Contact Extensometers - 4

Ordering Information The Epsilon ONE® system includes an Optics Package, lighting, Laser Assist Alignment System, Sensor Controller, cables, mounting interface, standard specimen marking kit and software. The included user interface software will run on your testing machine’s existing computer. Select an Optics Package that meets your range of gauge length and elongation requirements. Start with the largest gauge length that you will need and determine which Optics Packages have enough elongation range for that gauge length. Repeat this process for the smaller gauge lengths in your range of...

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