Method for monitoring deformations of components with light waveguides

Abstract From the Canadian patent

A b s t r a c t, Method for the monitoring of deformations of components by means of light waveguides, in which method the light waveguides are mechanically prestressed to such an extent relatively to the component or in themselves that at all levels of deformation expected to occur in the component their stressing remains in the tension range. This obviates upsetting of the light-conducting fibre of the light waveguide, such upsetting phenomena resulting in undesirable damping of the light pulses sent through the light waveguide and falsifying the measurement result in the course of stress monitoring operations.