R901002095VT-VSPA2-1-2X/V0/T5现货放大器、电子放大器、液动放大器和气动放大器等，其中用得广泛的是电子放大器。随着射流技术（见射流元件）的推广，液动或气动放大器的应用也逐渐增多。电子放大器又按所用有源器件分为真空管放大器、晶体管放大器、固体放大器和磁放大器，其中又以晶体管放大器应用广。在自动化仪表中晶体管放大器常用于信号的电压放大和电流放大，主要形式有单端放大和推挽放大。此外，还常用于阻抗匹配、隔离、电流-电压转换、电荷-电压转换（如电荷放大器）以及利用放大器实现输出与输入之间的一定函数关系  R900033823  VT-VSPA1-1-1X/R900979885 VT-VRPA2-1-1X/V0/T5R900979887 VT-VRPA2-1-1X/V0/T1R900979889 VT-VRPA2-2-1X/V0/T1R901002090 VT-VSPA2-1-2X/V0/T1R900021909 VT-VSPA2-1-1X/T10811405061 VT-VRRA1-537-20/V00811405060 VT-VRRA1-527-20/V00811405063 VT-VRRA1-527-20/V0/2STVR900020153 VT3002-1-2X/32DR900211788 VT11118-1X/R900962356 VT-HNC100-1-2X/M-08-0-00811405097 VT-VRPA1-537-10/V0/PVVT-VSPA1-50-1XVT-VSPA1-1-1XVT-VSPA2-1-1X/T1VT3006-3XVT3000-3XVT-VSPA2-50-1X/T1VT-VSPA2-50-1X/T5VT11011-1X/ VT-VSPA1-52-1XVT-VRPA2-1-1X/VO/T5VT11118-1X/VT3000-3X/VT-VRPA2-1-1X/VO/T1VT5006-1X/R901002095VT-VSPA2-1-2X/V0/T5现货VT11073-1X/VT-VRPA2-2-1X/V0/T5 VT-VRPA2-2-1X/V0/T1VT11006-1X/VT11131-1X/VT11132-1X/VT3002-2X/48FVT3002-2X/64GVT5005-1X/VT2000-5X/VT3002-2X/32DVT5041-2X/1VT11034-1XVT5035-1XVT11010-1X/VT11012-1X/VT11030-1XVT-VSPA1K-1-1X/VT11004-1X/VT11013-1XVT10468-3X/BO-RXVT11078-2XVT11007-1X/VT10406-3X/VT-HNC100-2-2X/W-16-0-0VT3024-3X)