extensometer

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extensometer

[‚ek‚sten′säm·əd·ər]
(engineering)
A strainometer that measures the change in distance between two reference points separated 60-90 feet (20-30 meters) or more; used in studies of displacements due to seismic activities.
An instrument designed to measure minute deformations of small objects subjected to stress.
References in periodicals archive ?
PSC's new MVE-100 high-performance machine-vision extensometer is designed to measure elongation, strain, and crack-opening displacement during testing of plastics, composites, elastomers, and other materials.
The remote system uses reliable wireline extensometer technology and software to create a graphical data presentation, calculate velocity, and issue warnings based on user-defined parameters.
It has the accuracy to accommodate very rigid/stiff specimens that strain very little [and] the travel to accommodate high-elongation polymers (such as TPEs), and, because it's non-contact, it can be used on delicate or thin materials, such as plastic film or foam, where traditional clip-on extensometers cannot be used.
The UVX-Flexi can complete a test through modulus and on to failure, eliminating the need to stop the test and remove clip-on extensometers.
The knife edges of the extensometer are located approximately at the ends of the region where the strains are mapped.
7], through strain gages (13), (18) or contact extensometers (10).
The company's full range of universal testing machines (UTMs) and accessories includes specialty extensometers for testing specimens under con-trolled conditions.
and European patents for its innovative technologies employed in its non-contacting Advanced Video Extensometer (AVE) and Standard Video Extensometers (SVE).
Special instruments such as the TAPlus food texture analyser are also featured, along with instrument accessories such as loadcells, splinter protection shields, compression cages, grips and fixtures, extensometers and thermal cabinets to meet different applications.
A number of grips, fixtures, adapters, temperature chambers and high-elongation extensometers are available.
Zwick plans more announcements later this year, including details on the release of a cutting-edge suite of laser and video extensometers that deliver supreme accuracy for non-contact strain measurements and strain control.
Non-contact measurement systems, including video extensometers, are said to be ideal for use in exacting market areas such as aerospace, automotive, defense, oil, gas and energy, research and development, and high technology motorsports, where highly accurate measurements directly traceable to national standards are critical for their materials, component or sub-assembly development.

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