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噪声电压、噪声电流是人们熟知的。对于任何一个控制系统,只要有电子元器件存在,噪声电压或噪声电流都是不可避免的。但是,由于系统的电子线路处理不当,元器件选择的不合理,焊接工艺不好,外界干扰不能消除等原因,都会产生比系统和电子元器件的固有噪声大得多的噪声。一般情况下,只要选用合适的元器件,设计合理的滤波网络,采取有效的屏蔽措施和良好的焊接工艺,完全可以把噪声稳定地控制在一定范围内。然而,这些一般措施对于某型红外导引头在机械振动状态下产生的噪声电压却无能为力。某型红外导引头是一个
Noise voltage, noise current is well known. For any control system, as long as the existence of electronic components, noise voltage or noise current are inevitable. However, due to improper system electronic circuit processing, component selection is not reasonable, the welding process is not good, external interference can not be eliminated and other reasons, will produce much larger than the inherent noise of the system and electronic components noise. Under normal circumstances, as long as the appropriate selection of components, a well-designed filter network, effective shielding measures and a good welding process, the noise can be stably controlled in a certain range. However, these general measures can not do anything about the noise voltage generated by a type of infrared seeker under mechanical vibration. A type of infrared seeker is one