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如图，采样电阻R1的阻值为0.1欧姆，流经采样电阻的电压是频率为100HZ，幅值为100mv的正弦波，用TINA软件做的仿真，使用采集电阻R1两端的电压作为差动放大器INA146的输入电压，为什么输出端VM4用TINA中的示波器不能显示呢，弹出如下错误对话框，求帮助.
整个电路图的连接如下
楼主，见另外一个相同主题的贴。请结贴。
