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在汽车电子控制系统中,有些电子信号的变化速度非常快,其信号周期达到了千分之一秒,有时汽车发生的故障是间歇性的,一般的仪器往往检测不到,而汽车示波器却可以检测到。汽车示波器将检测到的信号用波形方式进行显示,这就使汽车维修人员容易分析产生故障的真正原因。例如:从点火线圈二次侧电压(点火电压)波形中可以了解到点火线圈一次侧电路的闭合时间、火花塞的击穿电压、火花塞电极间火花放电电压、火花塞电极间火花放电持续时间和点火线圈二次侧电压的振荡情况等;通过观察节气门位置传感器的信号波形可以判
In the automotive electronic control system, some electronic signals change very fast, the signal cycle reached one thousandth of a second, and sometimes car failures are intermittent, the general instrument is often undetectable, but the car can be oscilloscope detected. Car oscilloscope will detect the signal waveform display, which makes it easy for vehicle maintenance personnel to analyze the real cause of failure. For example: From the ignition coil secondary voltage (ignition voltage) waveform can be found in the ignition coil primary circuit closing time, spark plug breakdown voltage, spark plug electrode spark discharge voltage, spark plug electrode spark discharge duration and ignition coil Secondary voltage oscillation, etc .; by observing the throttle position sensor signal waveform can be sentenced