【摘要】 介绍一种实用的过程量仪表测试用信号源,它包括调试过程量仪表常用的基本信号,如电压信号-10V~10V和恒流信号0~20mA。文中详细给出了电路原理图,基本公式的导出及制作方法。更多还原

【Abstract】 In this paper,the practical measuring signal generator for process instrument is introduced.It contains basic signals in common usage for process instrument.These are voltage signal-10V~10V and constant current signal 0~20mA.The basic circuit diagram,the derivation of equation and the design method are displayed.更多还原