extensometer


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ex·ten·som·e·ter

 (ĕk′stĕn-sŏm′ĭ-tər)
n.
An instrument used to measure minute deformations in a test specimen of a material.

extensometer

(ˌɛkstɛnˈsɒmɪtə) or

extensimeter

n
(General Physics) an apparatus for studying small changes of length, as in the thermal expansion or mechanical compression of a solid

ex•ten•som•e•ter

(ˌɛk stɛnˈsɒm ɪ tər)

n.
an instrument for measuring minute degrees of expansion, contraction, or deformation.
[1885–90; extens (ion) + -o- + -meter]

extensometer

an instrument for measuring minute degrees of contraction, expansion, or deformation, as of metals.
See also: Instruments
Translations
References in periodicals archive ?
Tenders are invited for self supporting high temp extensometer
While some testing standards do not require an extensometer, these devices are usually recommended to ensure accurate and repeatable results.
The first extensometer was located in the Skalisty potok Cave in October 2011 across the almost N-S-striking fault (080[degrees]/65[degrees], dip direction/dip) close to the upper entrance (48[degrees]37'45.35'' N; 20[degrees]52'15.62'' E).
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.
It can be found that MS events concentrated near the region of multipoint extensometer [M.sup.4.sub.CF]3-8 obviously and showed great consistence in temporal distribution.
At present, the most commonly used equipment for the tensile mechanical test is the mechanical extensometer and video extensometer.
All tests were conducted in actuator displacement control (i.e., using a constant speed of the machine actuator), but while CSM tests on A36, X100 and SH-37 were performed without extensometer, specimens tested at NIST (for all the remaining materials) were instrumented with an axial extensometer having sufficient travel (1 in.
The AVE 2 is a new version of Instron's non-contacting "advanced video extensometer" for flexural, compression, and tensile testing.
Instron's advanced video extensometer, the AVE 2, conforms to the most rigorous testing standards, such as ISO 527, ASTM D3039 and ASTM D638.
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.
The next step is loading the specimen into the test frame, where an extensometer measures strain levels as the load is increased.
Figure 3 illustrates the close correlation between the compaction of aquifers and the change of groundwater level recorded at 13 extensometer sites operated by USGS (1973-2012).

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