Stress evaluation in non-oriented electrical steel samples by observation of vector magnetic flux under static and rotating field conditions

Abstract

In this paper influence of uniaxial stress loading on local changes of magnetic properties in a non-oriented silicon steel was examined. The measurements were carried out for different direction of loading force in respect to the rolling direction of the steel. Impact of the relationship between the rolling and the loading direction on evaluation of magnetic properties changes caused by stress was investigated using samples cut out at three different angles from the steel sheet. During the experiments two types of transducers with two and three sensitivity axes operating under rotating AC and static DC field were utilized. First, the observation of local changes of parameters related to a vector magnetic flux was carried out. Then algorithms of measured signals parameterization were utilized and evaluation of the stress distribution in tested samples was proceeded. Finally, the statistical analysis of computed signals parameters was applied and the correlation with stress-strain curve was assessed.

Multi-Sensor Data Integration Using Deep Learning for Characterization of Defects in Steel Elements

“…Monitoring of all three components provides information that can be crucial for the identification of defects. Observation of the shape and the gradient of magnetic field disturbance over the examined object results in growth of the evaluation accuracy of not only depth, but also orientation or dimension of the defects [ 9 , 10 , 11 , 14 , 36 ]. The information content of the measured magnetic field can be analyzed under different terms providing various data about the defect parameters ( Table 1 ).…”

A Circular Microstrip Antenna Sensor for Direction Sensitive Strain Evaluation

“…Approximately 50% of all sensors in case of bridge monitoring systems are strain sensors [ 37 ]. Until now, stress measurements were performed using strain gauges, piezoelectric sensors, magnetic sensors and fiber optic sensors [ 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. In recent years, there has been a lot of research on the use of microstrip antennas for stress evaluation [ 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 ].…”