Thanks for helping out on the comparator, it works great. I plugged my scope into another vehicle to look at the output of the front wheel speed sensors. The sensors are on a 2009 Chevy Diesel pickup, in case anyone is wondering.
When I first hooked up the signal wasn't on the scope. So I broadened the y-axis to 5v/mark. The signal is offset around -3v. Still learning how to correctly use my scope I started to play around with the coupling setting for the channel. The coupling was set to DC, so then I changed it to AC and the output was then centered on 0v.
I looked up 'scope coupling' on the internet and found a handy site. Here it is for all others as new to this as I am.
http://oscilloscope-tutorials.com/oscilloscope/controls.asp
Anyways, I am going to get the pickup tomorrow to validate my findings. But, if this is the case, where the sine wave is offset a -3v, whats the trick to measuring the peaks that are above the -3v? I am playing around with an op-amp and setting it up as a 'sum op-amp'. I am adding 3v to the -3v offset sine wave that I can get with my scope and the results and not what I was expecting.
Thanks
Toby
When I first hooked up the signal wasn't on the scope. So I broadened the y-axis to 5v/mark. The signal is offset around -3v. Still learning how to correctly use my scope I started to play around with the coupling setting for the channel. The coupling was set to DC, so then I changed it to AC and the output was then centered on 0v.
I looked up 'scope coupling' on the internet and found a handy site. Here it is for all others as new to this as I am.
http://oscilloscope-tutorials.com/oscilloscope/controls.asp
Anyways, I am going to get the pickup tomorrow to validate my findings. But, if this is the case, where the sine wave is offset a -3v, whats the trick to measuring the peaks that are above the -3v? I am playing around with an op-amp and setting it up as a 'sum op-amp'. I am adding 3v to the -3v offset sine wave that I can get with my scope and the results and not what I was expecting.
Thanks
Toby