what is the gauge factor of a strain gauge
Gauge factor Gauge factor (GF) or strain factor of a strain gauge is the ratio of relative change in electrical resistance R, to the mechanical strain Îµ. The gauge factor is defined as:
Ductility Ductility is a measure of a material's ability to undergo significant plastic deformation before rupture, which may be expressed as percent elongation or percent area reduction from a tensile test. According to Shigley's Mechanical Engineering Design--10th Ed. [1] significant denotes about 5.0 percent elongation (Section 5.3, p. 233). See also Eq. 2-12, p. 50 for definitions of percent elongation and percent area reduction. Ductility is often characterized by the material's ability to be stretched into a wire.