Abstract
The dependence of the piezo-optical strain sensor gauge factor on the geometric parameters of the photoelastic element is obtained by accurate numerical simulations. It is shown that the piezo-optical gauge sensitivity to the applied force is more dependent on the photoelastic element shape than the sensitivity to deformation. A comparative analysis of the gauge factors and other parameters of strain-resistive, piezoelectric, fiber-optic, and piezo-optical strain gauges was carried out. Strain-resistive and fiber-optic sensor gauge factors are three orders of magnitude lower than those of piezo-optical sensors. Correctly calculated piezoelectric sensor gauge factors are also two-three orders of magnitude inferior to those of piezo-optical sensors. A comparison of the basic properties and parameters of modern commerical strain gauges based on different physical principles is presented.
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Russian Text © The Author(s), 2019, published in Avtometriya, 2019, Vol. 55, No. 3, pp. 103–112.
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Paulish, A.G., Zagubisalo, P.S. Numerical Simulation of the Piezo-Optical Strain Sensor Gauge Factor. Optoelectron.Instrument.Proc. 55, 296–302 (2019). https://doi.org/10.3103/S8756699019030129
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DOI: https://doi.org/10.3103/S8756699019030129