| 摘要 |
<p>PURPOSE:To prevent the intrusion of electromagnetic wave noise, by applying a paint containing the magnetic fine powder on the inner surface of a housing of an electronic computer to form a magnetic film there. CONSTITUTION:A paint containing the magnetic fine powder is applied on the inner surface of a housing of an electronic computer to form a magnetic film there. This prevents the intrusion of electromagnetic wave noise into the computer. That is, the electromagnetic wave which enters as noise has random conditions in terms of the incident angle, the phase and other factors. As a result, a magnetic matter orientated at a certain time point has a certain angle to the electromagnetic wave at another time point. Thus the magnetic matter functions as a vector which diffracts the travelling direction of the electromagnetic wave or attenuates said wave.</p> |
