extensometer

American  

[ek-sten-som-i-ter] / ˌɛk stɛnˈsɒm ɪ tər /

noun

1. an instrument for measuring minute degrees of expansion, contraction, or deformation.

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extensometer British  

/ ˌɛkstɛnˈsɪmɪtə, ˌɛkstɛnˈsɒmɪtə /

noun

1. an apparatus for studying small changes of length, as in the thermal expansion or mechanical compression of a solid

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Etymology

Origin of extensometer

First recorded in 1885–90; extens(ion) + -o- + -meter

Example Sentences

However, if the load had been excessive, and then relieved, the extensometer would no longer read exactly 2.0 in., but something more.

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)

From measurements of displacement by an extensometer we may deduce the average extension of a filament of the bar terminated by the two scratches.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" by Various

In making the test the specimen is fitted in the machine, and an extensometer attached to the middle portion and arranged to record the extension between the gauge points 8 inches apart.

From The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing by Record, Samuel J.

Cornu and A. Mallock, or directly by a modification of the extensometer method, as has been done recently by J. Morrow.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" by Various