电子设备在工作中,经常遇到来自各方面的干扰,这些干扰不但影响着,有时甚至会破坏电子设备的正常运行。因此防干扰是电子设备在设计制造时的必要课题之一。这里仅就屏蔽设计中的一些问题讨论如下: 干扰来自设备的内部或外部,一种设备既可以受到干扰,也可以干扰别的仪器。消除或减弱这些干扰,在线路之间可以采用滤波节,去耦电路等,在结构上则采用屏蔽、分流等措施。 At work, electronic equipment often encounters interference from all aspects, which not only affects but also sometimes damages the normal operation of electronic equipment. Therefore, anti-interference is one of the necessary issues in the design and manufacture of electronic equipment. Here are just a few of the issues in shielding design: The interference comes from the inside or outside of the device, and one device can either interfere or interfere with other instruments. Eliminate or reduce these interferences, you can use the filter section between the lines, decoupling circuit, the structure is the use of shielding, shunt and other measures.