How Strain Gauges Measure Deformation

Strain describes how a material deforms when a force is applied. Normal strain compares the change in length with the original length. Engineers use this measure to track stretching or compression in materials.

For higher accuracy, they often use electrical strain gauges. A strain gauge has a con...

Strain measures the deformation or displacement in a material. Normal strain is calculated by comparing lengths before and after a load is applied.

A more accurate method for measuring normal strains involves using electrical strain gauges consisting of a thin wire cemented to two pieces of paper.

When the material elongates, the w...