EM327 Poisson's Ratio Experiment Poisson's Ratio Poisson's Ratio is the ratio of transverse strain to longitudinal strain. Transverse strain is perpendicular to the direction of the load.
Longitudinal strain is parallel to the direction of the load.
Strain gages are placed on the bars in the longitudinal and transverse directions. Once the bars are loaded, strains are measured using a strain indicator and switch and balance unit. Strain readings are taken at various loading conditions. Modulus of elasticity as well as Poisson's Ratio can be determined. Experiments Equipment Course Information n Download the free viewer for Acrobat PDf files.