三、桥路经典四臂电桥的平衡方程由幅度和相位二个条件组成,其理论平衡范围只有四分之一平面。而新型平衡线路构成的基本形式是一系列双口网络的链接,很易插入有源或紧密耦合反相器来变更参数的符号。因此只要设计者愿意就可实现全平面平衡。也就是说,被经典电桥认为不可逾越的相位条件对新型线路已不存在,任一线路只要被测量是同类转移参数都可以作到经典意义下的万用性,而对经典线路来说则必须是由几个不同桥路组合而成。但这并不意味着:新型线路只要将程式 Third, the bridge classic four-arm bridge balance equation by the amplitude and phase of two conditions, the theoretical equilibrium range of only one quarter of the plane. The basic form of the new balanced line is a series of dual-port network links, easy to insert active or close-coupled inverter to change the parameters of the symbol. So as long as the designer is willing to achieve full balance. In other words, the classical bridge considered insurmountable phase conditions no longer exist for the new line, as long as any line is measured is the same kind of transfer parameters can be made in the classic sense of versatility, while the classic line It must be a combination of several different bridges. But this does not mean: the new line just program