旋进旋涡流量计的输出信号电路设计

Design on Precessing Vortex Flowmeter Output Signal Circuit

旋进旋涡流量计的两线制4～20mA输出的稳定性问题直接关系仪表的精度以及与DCS系统的连接,通过提出一种基于以Upc151为数模转换器(DAC)的4～20mA电流环路输出电路,有效解决了输出的稳定性问题,通过实证研究说明该电路和DCS系统的连接也非常可靠.

Preeessing vortex flowmeter of two-wire 4 - 20mA output stability problems directly related to instrument precision and connection with the DCS system. Proposed in this paper based on the UpclS1 DAC 4 -20mA current loop output circuiteffective solution to the problem of the stability of the output from the scene, and connection to the DCS system is also very reliable.