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。
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.
出处
《仪表技术》
2008年第2期1-2,5,共3页
Instrumentation Technology
关键词
过程量仪表
信号源
电压/电流变换器
恒流源
process instrument
signal generator
voltage-controlled current source
constant current circuit
