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在工业测试中,经常会遇到要测某种瞬时变化的电压、电流量,一方面希望得到其最大值,另一方面要得到其变化过程以及时间,以便对回路或部件进行分析研究。常用的方法是用光线示波器拍照。这种方法从操作上来说比较麻烦,从精度上来说,它要求先拍一个标准波,然后将实际波的幅度与其比较,用直尺去确定信号幅度。因此测量的精度很难做得高,而且不同的人,在不同的条件下测量的结果都可能有不小的差异。光线示波器的振子受湿度、震动的影响,走带又受机械精度的影响,要得到一张高质量的照片
In industrial testing, often encounter some kind of instantaneous changes in voltage and current, on the one hand want to get the maximum value, on the other hand to get the change process and time, in order to analyze the circuit or components. The common method is to take pictures with a light oscilloscope. This method is operationally cumbersome, in terms of accuracy, it requires taking a standard wave first, then comparing the actual wave amplitude with it and using a ruler to determine the signal amplitude. Therefore, the measurement accuracy is difficult to do high, and different people, under different conditions, the measurement results may have not a small difference. Oscilloscope oscillator by the humidity, vibration, transport and mechanical precision is also affected, to get a high-quality photos