Design and Fabrication of an Electromagnetic Stress Sensor
Ferromagnetic steel material is widely used as the bearing carrier in structure, whose stress would influence the entire security. As stress has a notable influence on magnetic characteristic parameters of steel material, with analysis of basic principles, a tubular type magnetic stress sensor is proposed in this paper. We verified the rationality of the magnetic path design with finite element analysis (In FLUX), and proposed a method combined with experiment and simulation to calibrate the output voltage of the sensor. With the comparison of the simulation and experimental results, feasibility of this means is proved, providing a high efficient calibration method of this kind of stress detection sensor, showing a promising marketing value.
Z. Y. Sun et al., "Design and Fabrication of an Electromagnetic Stress Sensor", Applied Mechanics and Materials, Vols. 128-129, pp. 567-570, 2012