One Minute StrainTalks : Transverse Sensitivity
In this podcast Anton discusses about Transverse sensitivity.
Transverse sensitivity in a strain gage refers to the behavior of the gage in responding to strains which are perpendicular to the primary sensing axis of the gage. Ideally, it would be preferable if strain gages were completely insensitive to transverse strains. In practice, most gages exhibit some degree of transverse sensitivity; but the effect is ordinarily quite small, and of the order of several percent of the axial sensitivity. It is usually expressed as a percentage of axial sensitivity and measured in a uniaxial strain field (gages at 0° and 90°). When using strain gage rosettes, it is always wise to correct for transverse sensitivity, because by default at least one grid will see a high transverse strain when compared to the measured axial strain.
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