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2. Introduction: General purpose extensometers for axial tensile, compression, and cyclic testing. Gauge lengths from 0.5 to 2 inches (and 10 to 80 mm) and measuring ranges from 5% to 100% strain. These extensometers are designed for testing a wide range of materials, including metals, plastics, composites and ceramics. All will work in both tension and compression. The dual flexure design makes them very rugged and insensitive to vibrations, which permits higher frequency operation. They come standard with Epsilon’s quick attach kit, making it possible to mount the extensometer on the test specimen quickly and easily with one hand. The quick attach kit can be removed, allowing mounting of the extensometer with springs or rubber bands. 3. Performance Characteristics：  May be left on through specimen failure.  Full bridge, 350 ohm strain gaged design for compatibility with nearly any test system.  All models can measure in both tension and compression and can be used for cyclic testing.  Mechanical overtravel stops in both directions.  Cable stops are used for overtravel protection where required. Epsilon’s cable stops are contained fully between the arms of the extensometer, and do not hang below where they can interfere with fixturing – especially during compression testing.  Hardened tool steel knife edges are easily replaced. A spare set comes with every extensometer.  High and low temperature options extend operation from as low as -265°C (-450 °F) to +200 °C (400 °F).  Replaceable arms and spacers for ease of repair. This also allows changing the gauge length for different test requirements.  Rugged, dual flexure design for strength and improved performance. Much stronger than single flexure designs, this also allows cyclic testing at higher frequencies.
 
 
 

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