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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
It also highlights the tectonic pulses recorded using threedimensional optical-mechanical extensometers, which are different from the long-term observations.
Figure 4 shows the absolute displacement curves of the multipoint extensometers [M.sup.6.sub.XZ]1-2 and [M.sup.4.sub.CF]3-8 installed between omnibus bar caves #1 and #3 in the downstream of main powerhouse.
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.
Unlike traditional extensometers, where users have to know where to place the extensometer prior to the test, the DIC software maps the entire specimen surface and records full-field information, allowing users to draw virtual extensometers anywhere on the specimen after the test.
IMETRUM HAS LAUNCHED WHAT IT SAYS IS THE FIRST NON-CONTACT VIDEO EXTENSOMETER CAPABLE OF ACHIEVING THE EXACTING REQUIREMENTS OF IS0527-1: 2012 ASTM D638 EQUIVALENT FOR THE TENSILE TESTING OF PLASTICS.
From measurements recorded by 13 extensometers and 72 GPS stations in the Houston-Galveston area, we derived the average subsidence rate (mm/year) in this area from 2006 to 2012 (Figure 1).
The stress-strain curves exhibit several artifacts that are known [28,29] to be created by the interaction of the discontinuous yielding or Luders bands, the specimen geometry and surface finish, and the geometry of the extensometer. To demonstrate these artifacts, we employed digital image correlation (DIC) to map the specimen axial strain in the gauge section of a build 3 vertical heat-treated specimen.
Direct measurement can be performed by employing several methodologies, such as optical methods [3, 7, 14, 15, 1.7], 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.

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