Strain Gage Sensitivity (with a good instrument)
One microstrain is one part-per-million. This is the equivalent of resolving 1 cm out of 10 kilometers! A strain gage can easily resolve 1 microstrain, as long as a quality instrument is utilized. In this video, Anton Chitty demonstrates the sensitivity of a strain gage that is possible with a good quality instrument, such as the Micro-Measurements P3 Strain Indicator and Recorder.