Stankowski Stefan, Kessi Andreas, Bécheiraz Olivier, Meier-Engel Karl, Meier Martin
Berne University of Applied Sciences at Biel, Quellgasse 21, CH-2500 Biel, Switzerland.
Health Phys. 2006 Feb;90(2):148-53. doi: 10.1097/01.hp.0000174526.10639.ff.
Alternating magnetic fields have been measured in a variety of different cars, the dominant contribution being from magnetized tires. Magnetic field strengths have been measured as a function of frequency directly at the tires and at different positions in rolling cars. Measurements at the tires showed field strengths up to 100 microtesla (microT). In the interior of rolling cars, close to the wheels at foot regions and at the back seat, field strengths of several microT were obtained in the 10-200 hertz (Hz) frequency domain. In some cases measured field values were considerably higher than those found in previous studies. Purposely magnetizing single tires made it possible to study the influence of various parameters. Degaussed tires retained low field values over prolonged time under conditions of normal use.
在各种不同的汽车中都测量到了交变磁场，其主要来源是磁化轮胎。已直接在轮胎处以及行驶中汽车的不同位置测量了磁场强度随频率的变化。在轮胎处的测量显示磁场强度高达100微特斯拉（μT）。在行驶中汽车内部，靠近脚部区域的车轮处以及后排座椅处，在10 - 200赫兹（Hz）频域内获得了几微特斯拉的磁场强度。在某些情况下，测量到的场值比先前研究中发现的要高得多。故意磁化单个轮胎使得研究各种参数的影响成为可能。消磁后的轮胎在正常使用条件下长时间保持低场值。
