Frequency-selecting property, phase-frequency characteristic, oscillatory condition and amplitude-stabilized circuit of RC-Wien-bridge oscillation circuit were researched by virtual simulation of Multisim. The characteristics of the RC-Wien-bridge oscillation circuit were obtained by changing parameters of the circuit and comparative observation. The result of virtual simulation is consistent with the conclusion of theoretical analysis. It is convenience to analyze electronic circuit ,design electronic system and develop electronic products.%通过运用Multisim对RC文式电桥振荡电路进行虚拟仿真实验,研究了RC文式电桥振荡电路的选频特性、相频特性、起振条件和稳幅电路等电路.通过改变电路元件参数进行对比观察得到了该振荡电路的相关电路特性,虚拟仿真实验结果与理论分析计算结果相一致.利用Multsim仿真软件对电子电路进行分析、电子系统设计和电子产品开发都十分便利.
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