International Symposium on Electromagnetic Compatibility


Session Number:21S1



A Free Scanning Method for Measuring Magnetic Distributions Using Magnetic Tracker

K. Sato,  


Publication Date:2009/7/20

Online ISSN:2188-5079


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Recently, it has been concerned to the influence on human health by the low frequency magnetic field. The safety limits of magnetic flux density for human health are defined in some guidelines, therefore we can know if there are some effects or not by comparing measured value with guidelines. In measurement of magnetic field distributions, it is important to identify the position of measuring points. Conventionally, it has been general that the measuring points are decided at lattice points of coordinate beforehand, and they are measured by using large-scale robot arms or by spending a great amount of time and manpower. In this study, the position of field sensor is decided automatically by using magnetic tracker from the viewpoint of the human interface. First, it is confirmed that this method can obtain field distributions in real time, and it can display distributions by interpolating measured data one after another. Next, the resolution at the position of the field sensor is discussed. As a result, it is found that the position of the field sensor is able to be identified within 1 cm of error range when the length of the rod is 80 cm.