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The Study of Detection system of two-wire flowmeter based on virtual instrument technology

机译:基于虚拟仪器技术的双线流量计检测系统研究

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In order to test the performance of the two-wire flowmeter, the detection system based on virtual instrument technology is designed in this paper. This system mainly consists of four parts: master control unit, flow rate signal measurement unite, standard instrument and Measured instrument. The master control unit of the detection system is PC. With the communication protocol of MODBUS, PC control the detection device to synchronous sample the standard flow meter and the measured flow meter, and output 4~20 mA current signal. The test analysis software is developed in LabWindows/CVI programming environment to achieve the test data automatically generated. Practice has proved that the system operation is simple, fast, and efficiency.
机译:为了测试双线流量计的性能,本文设计了基于虚拟仪器技术的检测系统。该系统主要由四部分组成:主控制单元,流量信号测量团结,标准仪器和测量仪器。检测系统的主控制单元是PC。通过Modbus的通信协议,PC控制检测装置与同步样品标准流量计和测量的流量计,输出4〜20 mA电流信号。测试分析软件是在LabWindows / CVI编程环境中开发的,以实现自动生成的测试数据。实践证明了系统操作简单,快速和效率。

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