衡量伺服控制系统性能的主要指标系统精度、稳定性、响应特性、工作频率四大方面，特别在频带宽度和精度方面。频带宽度简称带宽，由系统频率响应特性来规定，反映伺服系统的跟踪的快速性。带宽越大，快速性越好。伺服系统的带宽主要受控制对象和执行机构的惯性的限制。惯性越大，带宽越窄。一般伺服系统的带宽小于15赫，大型设备伺服系统的带宽则在1～2赫以下。自20世纪70年代以来，由于发展了力矩电机及高灵敏度测速机，使伺服系统实现了直接驱动，革除或减小了齿隙和弹性变形等非线性因素，使带宽达到50赫，并成功应用在远程、人造卫星、精密指挥仪等场所。伺服系统的精度主要决定于所用的测量元件的精度。因此，在伺服系统中必须采用高精度的测量元件，如精密电位器、自整角机和旋转变压器等。此外，也可采取附加措施来提高系统的精度，例如将测量元件（如自整角机）的测量轴通过减速器与转轴相连，使转轴的转角得到放大，来提高相对测量精度。采用这种方案的伺服系统称为精测粗测系统或双通道系统。通过减速器与转轴啮合的测角线路称精读数通道，直接取自转轴的测角线路称粗读数通道。ILA2E571TB1F0ILA2E571TB2A0ILA2E571TC1F0ILA2E571TC2A0ILA2E572PB1A0ILA2E572PB1F0ILA2E572PB2A0ILA2E572PC1A0ILA2E572PC1F0ILA2E572PC2A0ILA2E572TB1A0ILA2E572TB1F0ILA2E572TB2A0ILA2E572TC1F0ILA2E572TC2A0ILA2K571PB1A0ILA2K571PB1F0ILA2K571PB2A0ILA2K571PC1A0ILA2K571PC1F0ILA2K571PC2A0ILA2K571TB1A0ILA2K571TB1F0ILA2K571TC1F0ILA2K571TC2A0ILA2K572PB1F0ILA2K572PB2A0ILA2K572PC1A0ILA2K572PC1F0ILA2K572TB1A0ILA2K572TC1F0ILA2K572TC2A0ILA2P571PB1A0ILA2P571PB1F0ILA2P571PB2A0ILA2P571PC1A0ILA2P571PC1F0ILA2P571PC2A0ILA2P571TB1A0ILA2P571TB1F0ILA2P571TB2A0ILA2P571TC1A0ILA2P571TC1F0ILA2P571TC2A0ILA2P572PB1A0ILA2P572PB1F0ILA2P572PB2A0ILA2P572PC1F0ILA2P572PC2A0ILA2P572TB1A0ILA2P572TB1F0ILA2P572TB2A0ILA2P572TC2A0ILA2T571PB1A0ILA2T571PB1F0ILA2T571PB2A0ILA2T571PC1A0ILA2T571PC1F0ILA2T571PC2A0ILA2T571TB1F0ILA2T571TB2A0ILA2T571TC1A0ILA2T571TC1F0ILA2T571TC2A0ILA2T572PB1A0ILA2T572PB1F0ILA2T572PB2A0ILA2T572PC1A0ILA2T572PC1F0ILA2T572PC2A0ILA2T572TB1A0ILA2T572TB1F0ILA2T572TB2A0ILA2T572TC1A0ILA2T572TC1F0ILA2T572TC2A0ILE无刷直流技术ILE1F661PB1A1ILE1F661PC1A1ILE1F661PB1A2ILE1F661PC1A3ILE2K661PC1A8ILE2K661PC1A5ILE2K661PC1A6ILE2E662PC1A0ILE1B661PC1A3ILE1B661PC1A0ILE1B661PC1A1ILE1B661PC1A8ILE2T661PC1A0ILE1F661PC1A2ILE1F661PB1A3ILE2E661PC1A0ILE2T661PC1A1ILE1B661PC1A2ILE1F661PC1A4ILE2E661PB1A0ILE1F661PC1A0ILE1F661PC1A7ILE1B661PB1A0ILE1B661PB1A1ILE1B661PB1A2ILE1B661PB1A3ILE1B661PB1A4ILE1B661PB1A5ILE1B661PB1A6ILE1B661PB1A7ILE1B661PB1A8ILE1B661PC1A4ILE1B661PC1A5ILE1B661PC1A6ILE1B661PC1A7ILE1F661PB1A0ILE1F661PB1A4ILE1F661PB1A5ILE1F661PB1A6
伺服系统的分类方法很多,常见的分类方法有以下三种.(1)按被控量参数特性分类.(2)按驱动元件的类型分类.伺服控制系统按所用控制元件的类型可分为机电伺服系统、液压伺服系统（液压控制系统） 和气动伺服系统。(3)按控制原理分类.伺服系统可分为开环控 制伺服系统、闭环控制伺服系统和半闭环控制伺服系统。ILS2D573PB1A0ILS2D851PB1A0ILS2D851PB1F0ILS2D851PC1F0ILS2D852PB1A0ILS2D852PB1F0ILS2D852PC1A0ILS2D852PC1F0ILS2D853PB1A0ILS2D853PB1F0ILS2D853PC1F0ILS2D853TB1A0ILS2D853TB1F0ILS2D853TC1A0ILS2E571PB1A0ILS2E571PC1A0ILS2E572PB1A0ILS2E572PC1A0ILS2E573PB1A0ILS2E573PC1A0ILS2E851PB1A0ILS2E851PC1A0ILS2E851PC1F0ILS2E852PB1A0ILS2E852PB1F0ILS2E852PC1A0ILS2E852PC1F0ILS2E853PB1A0ILS2E853PB1F0ILS2E853PC1A0ILS2E853PC1F0ILS2E853TB1A0ILS2E853TB1F0ILS2E853TC1A0ILS2E853TC1F0ILS2K571PB1A0ILS2K851PC1A0ILS2K851PC1F0ILS2K852PB1A0ILS2K852PB1F0ILS2K852PC1A0ILS2K852PC1F0ILS2K853PB1F0ILS2K853PC1A0ILS2K853PC1F0ILS2K853TB1A0ILS2K853TB1F0ILS2K853TC1A0ILS2P572PB1A0ILS2P572PC1A0ILS2P573PB1A0ILS2P573PC1A0ILS2P851PB1A0ILS2P851PB1F0ILS2P851PC1A0ILS2P851PC1F0ILS2P852PB1A0ILS2P852PB1F0ILS2P852PC1A0ILS2P852PC1F0ILS2P853PB1A0ILS2P853PB1F0ILS2P853PC1A0ILS2P853PC1F0ILS2P853TB1A0ILS2P853TB1F0ILS2P853TC1A0ILS2P853TC1F0ILS2T571PC1A0ILS2T572PB1A0ILS2T851PB1F0ILS2T851PC1F0ILS2T852PB1F0ILS2T853PB1A0ILS2T853PC1A0ILS2T853PC1F0ILS2T853TB1A0ILS2T853TB1F0ILS2T853TC1A0ILS2T853TC1F0
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