As in the diagnosis of vehicle maintenance personnel, failure to quickly and accurately to capture anomalies and find the reasons, is the key to solve the problem, and oscilloscope is helping maintenance staff to solve this problem, the important helpers. In this combination in the diagnosis of maintenance oscilloscope brief analysis.

1 in automobile maintenance of digital oscilloscopes

Automobile electronic equipment of some change rate is very quick, change cycle to one thousandth seconds, usually of testing instruments scanning speed should be measured signals of 5 ~ 10 times. Many fault signal is intermittent, sometimes, it needs no instrument testing faster than the speed of fault signal. Digital oscilloscope can meet this requirement, it can not only speed quickly capture circuit signal, still can use at slower speeds to display the waveform to maintenance personnel can observe, a side. It also can be used to store the signal waveform, can record way back observation has already occurred, the rapid signal for failure analysis and provides great convenience. Whether the speed signals (such as: the injector signal), or low signals (such as the throttle position changes and oxygen sensor signal), with an oscilloscope come from observation can found in waveform. As a ruler oscilloscope, it can measure the computer system working condition, through the oscilloscopes can observe automobile electronic systems is how to work.

2 in automobile oscilloscope fault cases of application

When the automobile electronic device or circuit breakdown, need maintenance staff to all relevant data collection. oscilloscope display circuit electronic movement can track, the method is the voltage changing with time in the display mode, the curve shown depends on the size of the voltage and current circuit resistance. According to the oscilloscope voltage change over time, can judge circuits exactly what the problem is. To make the most oscilloscope effect, it should be collected by the waveform analysis.