A strain gauge is a sensitive device used to measure the strain or deformation of an object. It operates based on the principle that the electrical resistance of a conductor changes when it is stretched or compressed. Here’s an overview of how strain gauges work and their applications: ### How It Works: 1. **Construction**: A typical strain gauge consists of a thin metallic wire or a thin film of conductive material arranged in a grid pattern, which is bonded to the surface of the material being tested.
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