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An extensometer is a device that is used to measure small changes in the length of an object. It is useful for stress-strain measurements. The name is derived from "extension-meter".
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Instron offers an advanced, high-resolution automatic contacting extensometer that is suitable for a wide range of materials such as plastics, composites, metals and elastomers.
Very small and rugged, yet ultra-light weight, these units are widely used for testing small and delicate samples. Ideal for many biomedical tests, as well as for wire and thin sheet materials. Also great for low cycle fatigue testing where short samples are used.
The model 500L non-contact extensometer from Tinius Olsen is developed for measuring the extension of medium to high elongation materials, typically elastomers.
Tinius Olsen offers a range of horizontal tensile testing machines in capacities of 5 kN (1,000 lbf), 25kN (5,000 lbf), 150 kN (30,000 lbf) and 300kN (60,000 lbf) for maximum tensile testing throughput and capability.
The advanced new Tinius Olsen video extensometer has been developed for non-contact, accurate measurement of specimen strain and is offered in a range of configurations.
Easy, quick, one-handed placement is the key to United's Model EZ Extensometer. Designed with a minimum number of moving parts, and "snap-on" mechanization, the unit combines simple operation with reliable, efficient measuring performance.
The LE Model Laser Extensometers are precision, wide-range instruments specifically designed for accurate, non-contact measurement of strain on various materials under tensile or compressive conditions.
Using a unique laser scanning approach developed by United Calibration Corporation, the United Laser Extensometer permits accurate non-contact extension measurement from the start of the test through sample failure without test interruption.