摘要
由于开关电容滤波器的集成度高,性能稳定且频率特性直接受控于外接时钟,因此在需要可变特性甚至连续可变特性滤波器的场合下具有不可替代的作用。本文介绍两种通用型SCF器件及其在管线探测仪中的应用。
Due to the high density,stability,and the frequency character controlled by exterior clock directly,SCF device acts an important role in the circumstance where the modifiable character or even the continuous modifiable character filters are needed.Two kinds of universal SCF devices and the application in underground metal line detecting are introduced.
出处
《测控技术》
CSCD
2003年第10期64-65,67,共3页
Measurement & Control Technology
关键词
开关电容滤波器
带通滤波器
金属管线探测
switch capacitor filter(SCF)
band pass filter
metal line detecting
