Soft magnetic materials are excellent candidates as sensors for monitoring materials, applications and processes, having already found application in multiple sectors. Moreover, their ability to be configured as microwires ensures excellent integration within composite structures, making them ideally suited for reinforced material monitoring. At GAIKER, within the INFINITE and MOSINCO projects, required equipment and characterization techniques have been developed to evaluate the behavior of electromagnetic properties under various stimuli (stress, temperature...) These investigations have enabled the analysis of both hysteresis loops and scattering parameters in transmission and reflection within the microwave range, under conditions such as composite matrix polymerization or when subjecting specimens to different stress states. Consequently, a clear dependency of scattering parameters and impedance on applied stress, which can be monitored, has been demonstrated. However, despite the repeatability of the phenomenon, modeling this behavior is challenging due to the dispersion of results caused by multiple factors and varying conditions that influence outcomes in a conventional environment. This study analyzes the influence of the relative sample position on these measurements and presents results obtained by modifying the position and orientation of microwires through rotation and flipping movements of the test specimen.
Abstract Soft magnetic materials are excellent candidates as sensors for monitoring materials, applications and processes, having already found application in multiple sectors. Moreover, [...]
Influence of sample position on stress monitoring in composite materials using magnetic microwires. 
