A strain gauge is a sensor used to measure the amount of strain (deformation) in an object. It works by changing its electrical resistance when stretched or compressed. The gauge is attached to the surface of the object being measured, and when the object deforms, the strain gauge deforms as well. This causes a change in its resistance. The changes are then measured and converted into strain data. These versatile sensors are used in a wide range of industrial applications. Civil engineers use strain gauges to assess bridges, buildings and other structures. They are also used in manufacturing, ensuring quality control during production. Additionally, strain gauges are also used in the automotive industry for testing and improving car parts, including chassis and suspension systems

You can learn more in our complete guide to strain gauges.

Strain Gauges vs Load Cells

Strain gauges and load cells both measure force, but they do so differently. A strain gauge is a sensor that measures the strain (deformation) in an object by detecting changes in electrical resistance. Load cells, on the other hand, are complete transducers that convert force into an electrical signal, often using strain gauges as a component. For a more in-depth overview, see our Load Cells Guide

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