extensometer

[ek-sten-som-i-ter]

noun

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

extensometer

/ ˌɛkstɛnˈsɪmɪtə, ˌɛkstɛnˈsɒmɪtə /

noun

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

Word History and Origins

Origin of extensometer¹

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

Example Sentences

The deep well drilled for the extensometer can also be used to study the aquifer’s water chemistry.

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Eggleston and Pope discovered the Hampton Roads sanitation district would be willing to pay $1.3 million for a new extensometer.

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

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

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

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