Strain Gage is defined as an, it is a material in which one whose electrical resistance is proportional to the instantaneous spatial-average strain over its surface. Depending on the changes in the application the force, strain whose devices are strain gages.The metallic foil film in strain gage in which there are in the thickness of the few microns which is glued on a thin electrically insulated sheet likewise polyimide, polyester and so on. Strain gages are of structure in which this contains. Plus
