Magnetic harvester for autonomous steel health monitoring sensors

Abstract

In our days, the new specifications and standards produced by the Internet of Things makes it necessary for the ever-existing need for control over the quality of resources like metals to be reexamined. Nondestructive testing of metal components in machines, tools and construction materials is still considered the most effective method of controlling the quality of metals during production and maintenance, but a more automated and autonomous process of data collection can go a long way with the efficiency of industrial applications. In this paper, an energy harvester is used as a power supply for a steel health monitoring sensor. The paper follows the redesigning of an existing magnetic permeability sensor and the application of the energy harvester in order to achieve autonomous operation, which also includes data monitoring and transmission, thus making the system an Internet of Things compatible device.