论文部分内容阅读
传递函数的求得通常采用理论、实验、或理论和实验相结合的方法。理论的方法往往需要对问题进行简化和近似,因而得到的结果常常出现较大的误差,造成失真。但是它能比较直观地反映系统内各环节的影响,对于设计一个新系统是比较适用的。实验的方法只要方法得当,也能全面地反映系统的真实情况。但它只能用于系统允许试验又具有充足的仪器设备的场合。同时对实验结果的分析,用人工进行也是十分繁杂的。而理论和实验相结合的方法
The transfer function is usually obtained using theory, experiment, or a combination of theory and experiment. The methods of theory often need to simplify and approximate the problems, so the results obtained often have larger errors and distortions. However, it can more directly reflect the impact of various aspects of the system, for the design of a new system is more applicable. Experimental methods as long as the method properly, but also a comprehensive reflection of the real situation of the system. However, it can only be used where the system allows testing and has sufficient equipment. At the same time, the analysis of experimental results, using manual work is also very complicated. The combination of theory and experiment method