Extensometer meaning

ĕk'stĕn-sŏm'ĭ-tər
An instrument used to measure minute deformations in a test specimen of a material.
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An instrument for measuring extremely small degrees of expansion, contraction, or deformation, as in a test piece of metal subjected to tension.
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An electro-mechanical device for measuring changes in length of an object undergoing stress.
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Origin of extensometer

  • extens(ion) –meter
    From American Heritage Dictionary of the English Language, 5th Edition