The lowest voltage is 1 volt apart, between an oscilloscope and another. And the ripple is 325 mv apart, then the other results are almost the same. The question is which of the teams measured badly?
The measurement algorithm of these devices is different. Pico measured the maximum amplitude or peak to peak of the total ripple, whereas the USB Autoscope measured the actual rectifier ripple from the diodes in the alternator. A major cause of extra measured ripple is the alternator field being turned on and off rapidly, since the field is PWM controlled on most charging circuits. Ignition coils and injectors turning on and off will generate some ripple as well
The lowest voltage is 1 volt apart, between an oscilloscope and another. And the ripple is 325 mv apart, then the other results are almost the same. The question is which of the teams measured badly?
The measurement algorithm of these devices is different.
Pico measured the maximum amplitude or peak to peak of the total ripple, whereas the USB Autoscope measured the actual rectifier ripple from the diodes in the alternator. A major cause of extra measured ripple is the alternator field being turned on and off rapidly, since the field is PWM controlled on most charging circuits. Ignition coils and injectors turning on and off will generate some ripple as well
How much it’s the usb labscope?
You can contact me directly or check this website.
autoscope.eu/products/