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What is the smallest strain (smallest resolution of strain?
Which is the smallest increment for reading strain
he following table provides an overview of the smallest achievable resolutions:
| Resolution | Technology |
| ca. 0,01μm/m ... 0,1μm/m | Metal foil strain gauges |
| ca. 0,001 μm/m ... 0,01 μm/m | Semiconductor strain gauges |
| ca. 100 μm/m | photoelasticity |
| ca. 100 μm/m | varnish |