期刊
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
卷 72, 期 -, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIM.2022.3232168
关键词
Lego-like; magnetic field mapping; magnetometer; real-time; reconfigurable
Magnetic field mapping is a tedious task that can be accelerated by using magnetometer arrays. However, the traditional methods have limitations such as power inefficiencies and the absence of real-time data acquisition. MagMaps overcomes these limitations by introducing a modular Lego-like approach using MagBricks modules with unique addresses. These modules continuously acquire magnetic field data and transmit them to a computer through a MasterBrick, where they are sorted and displayed in real time. This approach offers portable, power-efficient, and economical real-time magnetic field mapping.
Magnetic field mapping is tedious; a magnetometer probe collects magnetic field data in a point-by-point manner within a two-dimensional (2-D) or three-dimensional (3-D) space. Magnetometer arrays accelerate this process by replacing point-by-point mapping with plane-by-plane mapping. When mapping a large space, a motorized stage is additionally required; the limitations include power inefficiencies, large footprints, cost, and the absence of real-time data acquisition. Here, we introduce MagMaps, a modular Lego-like approach to Magnetic field mapping that overcomes the limitations described above. MagMaps includes a set of physically identical modules termed MagBricks that can be stacked in all three axes (similar to Lego bricks); this covers the region of interest and eliminates the need for a motorized stage. Each MagBrick is an independent enslaved module with a unique address, having a microcontroller that continuously acquires magnetic field data from a magnetometer array. An additional brick termed the MasterBrick serves as a bridge between the computer and the MagBricks. The MasterBrick collects magnetic field data from uniquely addressed MagBricks and communicates them to a computer, where they are sorted and displayed in real time. This modular Lego-like approach and the use of only off-the-shelf electronic components allow MagMaps to offer real-time MagMaps that is portable, power-efficient, and economical for various 2-D or 3-D spaces.
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