I think that's just the charging voltage goin up and down .to see the diode pattern u have to shortened the time ..I have a 97 Civic but I get irregular spikes that coincide with the alt control side so wonder if u have any idea what's causing it
By all standards this is called an AC ripple test because those humps are a direct result of the rectifier bridge as it flips the negative pulse into a positive pulse. The quality of how well the bridge works will impact the amplitude and quality of the waveform. If any diode fails that can also be viewed.
Great Job once Again Mr Master Driveline. Question how would you set the scope up on a Digital ABS signal? I look on your chart which is not listed. Thanks a million
A digital ABS sensor is going to be hall effect or magneto resistive. I don't think I have a vehicle to test this on but I would start with the following settings. These are most likely a 5 volt circuit but they could also be up to 12 volts. Start with a voltage setting of 2V (lower it to 1V for a 5V circuit), set the time to 50ms and you may need to adjust it up or down based on the wheel speed and the amount you wish to view on the screen. Auto trigger, Trigger voltage around 1 volt, Trigger on the Rise, invert off, horizontal trigger 1 graduation from the left and meters set to frequency. Tweak these settings once your connected to the vehicle and the faster the wheel speed the higher the frequency. I will put this on my wish list to do. locate and back probe the trigger or signal wire from the sensor. There are only 2 or 3 wires so even if you are guessing and check each wire you can't hurt anything. The wheel should be rotating slowly when your probing the sensor wires. If you get this to work please write back with what settings worked for you.
My reference file came from my own personal actual test. When you make a test and you press the A button the settings and waveform will be saved into the meter memory card. Under the description of one of my videos I provide a link to a zip file that you can download. it has all of my presets that also have the reference file. You can connect your uScope to a PC and copy those files into your memory card. One of my videos shows you how to do this. It's been a while so I don't remember which video has which. Sorry.
@@DrivelineMaster I couldn't find uScope anywhere on Amazon. On Official product website it cost 199 bucks. I shouldn't bother you with questions. I'm not even gonna use this thing more than couple times in my life.
@@SergSpace The uScope is only available from AES Wave www.aeswave.com/1-channel-scopes-c462/ There should have been this link available within the last few seconds of the video if you watched it to the end.
@@SergSpace For anyone who is not in the automotive repair industry and would only use this a few times it's expensive but for a technician who would use it frequently and for what it can do the price is reasonable. A lot of automotive testing tools are quite expensive.
I think that's just the charging voltage goin up and down .to see the diode pattern u have to shortened the time ..I have a 97 Civic but I get irregular spikes that coincide with the alt control side so wonder if u have any idea what's causing it
By all standards this is called an AC ripple test because those humps are a direct result of the rectifier bridge as it flips the negative pulse into a positive pulse. The quality of how well the bridge works will impact the amplitude and quality of the waveform. If any diode fails that can also be viewed.
Great Job once Again Mr Master Driveline. Question how would you set the scope up on a Digital ABS signal? I look on your chart which is not listed. Thanks a million
A digital ABS sensor is going to be hall effect or magneto resistive. I don't think I have a vehicle to test this on but I would start with the following settings. These are most likely a 5 volt circuit but they could also be up to 12 volts. Start with a voltage setting of 2V (lower it to 1V for a 5V circuit), set the time to 50ms and you may need to adjust it up or down based on the wheel speed and the amount you wish to view on the screen. Auto trigger, Trigger voltage around 1 volt, Trigger on the Rise, invert off, horizontal trigger 1 graduation from the left and meters set to frequency. Tweak these settings once your connected to the vehicle and the faster the wheel speed the higher the frequency. I will put this on my wish list to do. locate and back probe the trigger or signal wire from the sensor. There are only 2 or 3 wires so even if you are guessing and check each wire you can't hurt anything. The wheel should be rotating slowly when your probing the sensor wires. If you get this to work please write back with what settings worked for you.
Thanks a Million, im on vacation right now soon as i get back👍🏻
Where did you get the reference file from? Or this is just a preset - the set of parameters stored under User selected Name?
My reference file came from my own personal actual test. When you make a test and you press the A button the settings and waveform will be saved into the meter memory card. Under the description of one of my videos I provide a link to a zip file that you can download. it has all of my presets that also have the reference file. You can connect your uScope to a PC and copy those files into your memory card. One of my videos shows you how to do this. It's been a while so I don't remember which video has which. Sorry.
@@DrivelineMaster I couldn't find uScope anywhere on Amazon. On Official product website it cost 199 bucks. I shouldn't bother you with questions. I'm not even gonna use this thing more than couple times in my life.
@@SergSpace The uScope is only available from AES Wave www.aeswave.com/1-channel-scopes-c462/ There should have been this link available within the last few seconds of the video if you watched it to the end.
@@DrivelineMaster Yeah. And I cried when I saw the price of the thing which I will probably use once or twice for the whole of my life.
@@SergSpace For anyone who is not in the automotive repair industry and would only use this a few times it's expensive but for a technician who would use it frequently and for what it can do the price is reasonable. A lot of automotive testing tools are quite expensive.
Thank u sir