strain gauge


strain gauge

Device for measuring the changes in distances between points in solid bodies that occur when the body is deformed. Strain gauges are used either to obtain information from which stresses in bodies can be calculated or to act as indicating elements on devices for measuring such quantities as force, pressure, and acceleration.

This entry comes from Encyclopædia Britannica Concise.
For the full entry on strain gauge, visit Britannica.com.

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