Hey guys I had to make a final project for my electronics engineering course and instead of being like everyone else I made a air fuel ratiop meter that also has a LCD display to monitor oxygen sensor voltage at the same time aas the LED's are displaying the mixture.
Check it out at http://www.imagestation.com/album/?id=4290323659




Modified by EGJDM at 10:08 PM 4/19/2003


Modified by EGJDM at 10:15 PM 4/19/2003

 

cool does it work? I know it wont work like a wideband but it is still cool..

 

It actually works really well and it gives a very accurate reading off the sensor.

 

more info... how did you go about making it and what not.

I am curious as I would like something for reference without going back to the dyno for the WB or buying a prebuilt WB.

Is this still using the narrow band sensor?

Obviously there is no perfect replacement for actually putting it on a dyno, but it is good to have some idea or generally whats going on without that. 100 an hour is getting expensive when you have to go a couple times a month.

 

whats the speed and resolution of the voltage output?

 

Its response is really quite quick and the voltage increments in .001 so it is quite accurate

 

can you post pics for us non-imagestation users

 

I am doing to same thing for my final project except mine has 10 LED's. Pretty interesting what you can learn from starting from scratch.

 

Does anyone know how to post images on here I can't figure it out??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGJDM &raquo;</TD></TR><TR><TD CLASS="quote">Does anyone know how to post images on here I can't figure it out??</TD></TR></TABLE>
Yes, same here. Can someone help us show how to post pix? Thanks,
Vic

 

here you go.

 

I'd be intrested im buying one from you if you can make it 0-5v instead of 0-1v

 

If it's for school, you must have drawn plan before you start the project, don't you??
now If you don't mind, would you post the plan of it, that way the other user that are familiar with electronic can built their own,
do you need to get a + 5 and a -5 DC in somewhere on this board??
Look pretty tight, I like the idea of doing my own, but I am presently in exam session in College and, damn, I don't have anytime to draw my own bord. By sharing with other, really it's up to you, we can all put our suggestion together and maybe come up with something really nice and precise event though your with the 1mv incrementation seem really sharp.

see ya
Kranked.

 

i don't care how old this is.

BUMP

 

Nice work