摘要
逆变式高频X射线发生器电源的开关脉冲产生的电磁干扰很容易通过传导耦合和辐射耦合进入信号电路。尤其是干扰信 号频率接近视频图像信号和显示扫描频率,可能十分明显地影响到系统的工作性能和图像质量。文章针对DR成像链实 际干扰现象的原因和抑制措施进行了分析讨论。
The electric-magnetic interference, produced by high-frequency inverters due to on-off pulses in X-ray generators, is easy to come into circuits of weak signals. Especially when interference signal frequency approaches to video image signals & display scanning frequency, the operation performance and image qualities will be affected markedly. This paper discusses the reasons of the interference and its restraining method in digital radiography imaging chains.
出处
《中国医疗器械杂志》
CAS
2003年第3期167-169,176,共4页
Chinese Journal of Medical Instrumentation
