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strain gage |
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strain gage [′strān ‚gāj] (engineering) A device which uses the change of electrical resistance of a wire under strain to measure pressure. Strain gage A device which measures mechanical deformation (strain). Normally it is attached to a structural element, and uses the change of electrical resistance of a wire or semiconductor under tension. Capacity, inductance, and reluctance are also used. The strain gage converts a small mechanical motion to an electrical signal by virtue of the fact that when a metal (wire or foil) or semiconductor is stretched, its resistance is increased. The change in resistance is a measure of the mechanical motion. In addition to their use in strain measurement, these gages are used in sensors for measuring the load on a mechanical member, forces due to acceleration on a mass, or stress on a diaphragm or bellows. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The MGCplus acquires data from a variety of sensors placed on the rocket, including strain gages, thermocouples, load cells and LVTDs, and presents it to engineers in native or engineering units. He is especially proud of his membership in the Western Regional Strain Gage Committee. One major improvement in the instrumentation aspect of the system was made available through the introduction of electronic strain gage load cells instead of mechanical levers and dials. |
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