Multisim 2001在基于UAF42陷波器设计中的应用

Application of Multisim 2001 in the Design of Notch Filter with UAF42

目前地球物理勘探(物探)工作使用的专业电子仪器的工作频率都较低,所以在物探仪器中运用陷波器相当普遍,特别是用于压制50Hz电力线的干扰方面。为了压制50Hz的工频干扰,要在仪器的信号调理部分采用陷波器电路。为了设计和优化基于UAF42的新型陷波器电路,采用Multisim2001进行仿真实验。Multisim2001借助虚拟现实技术,使设计者能快速地模拟、分析、验证所设计电路的性能。与传统方法相比,这种虚拟技术既省时又经济,而且还可避免实验中发生的各种损坏和事故。本文利用基于UAF42设计的50Hz陷波器的仿真电路,对陷波器的频率响应进行了仿真。仿真结果表明,基于UAF42的50Hz陷波器达到了设计目的和要求,并证明了Multisim2001在电路设计中的重要作用。

At present ,the frequency of geophysical exploration instrument is low ,so the notch filter is generally needed ,especially in suppressing the 50 Hz power line interference. To suppress the 50 Hz power line interference, notch filter is needed in signal conditioning part of instrument. Mulltisim 2001 is used in design and optimization of new type notch filter based on UAF42 IC. Mulitisim 2001 based on the virtual electronic technique,let the designer simulate,analyze,validate performances of the designed circuit rapidly. Comparing with conventional technique ,this virtual technique share high efficiency and reduced cost ,and it can avoid different damages and accidents in process of experiment. In this paper,the frequency response of 50 Hz notch filter,which is based on simulation circuit of 50 Hz notch filter realized by UAF42 is simulated. Simulation result shows that 50 Hz notch filter realized by UAF42 reaches the requirement of design,and proves