Purchasing Torsional Strain Gauges

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SUMMARY

Torsional strain gauges do not exist as standalone devices; instead, torsion in circular shafts is measured using standard strain gauges. Specifically, two ordinary strain gauges should be positioned at 45 degrees to the axis of the shaft to capture the shear strain effectively. Additionally, a strain gauge rosette consisting of three gauges spaced 120 degrees apart can measure any two-dimensional strain field, providing a comprehensive solution for torsional strain measurement.

PREREQUISITES
  • Understanding of strain gauge technology
  • Knowledge of shear strain concepts
  • Familiarity with strain gauge rosettes
  • Basic principles of torsion in circular shafts
NEXT STEPS
  • Research the installation techniques for standard strain gauges
  • Learn about strain gauge rosettes and their applications
  • Explore the principles of shear strain measurement
  • Investigate advanced strain measurement techniques for torsional applications
USEFUL FOR

Engineers, researchers, and technicians involved in mechanical testing, materials science, and structural analysis will benefit from this discussion on measuring torsional strain effectively.

RobertsSBD
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Does anyone know where I can purchase a torsional strain gauge? Website? Company?
Thanks
 
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I don't think there is sich a thing as a "torsional strain gauge". Strain gauges measure direct strain. If you have torsion in a circular shaft for example, there is a shear strain on the surface of the shaft which is equivalent to equal and opposite direct strains at 45 degrees to the axis of the shaft. So you just use two "ordinary" strain gauges at 45 degrees to the axis.

A strain gauge rosette with 3 gauges 120 degrees apart will measure any two-diimensional strain field.
 

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