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从大型养路机械自动测试系统的功能和系统结构出发,详细说明了虚拟万用表、虚拟示波器的基本工作原理和实现方法,并重点阐述了利用恒流源测量电阻。虚拟仪器的应用降低了测试成本和测试的难度。
Starting from the function and system structure of large track maintenance machinery automatic test system, the basic working principle and realization method of virtual multimeter and virtual oscilloscope are described in detail, and the measurement of resistance by using constant current source is emphatically described. The application of virtual instruments reduces the cost of testing and the difficulty of testing.