Multisim 2001在基于UAF42陷波器设计中的应用

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50 Hz电力线的干扰方面.为了压制50 Hz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Multisim 2001进行仿真实验.Multisim 2001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50 Hz陷波器达到了设计目的和要求,并证明了Multisim 2001在电路设计中的重要作用.

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

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.Mulitisim 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 that Multisim 2001 can play important role in circuit design.