01-07-2013 11:44 AM
Hello,
I am trying to measure cylinder pressure vs. crank angle. The crank angle is indicated by a trigger wheel with 360 teeth or 5V pulses per revolution. Top dead center (TDC) or 0 degrees is indicated by another tooth. This tooth allows you to calibrate the signal.
I have tried to use a counter that counts the 360 pulse/rev. The problem is, I don't know how to reset this counter to 0 degrees when the TDC triggers. I have dasylab Basic. My understanding is that the action module might help me, but this requires an upgrade. Is there a way around the action module?
Thanks for your help.
Cheers,
Robert Maier
Solved! Go to Solution.
01-07-2013 11:48 AM
Hi Robert,
Even you you had the Action, it's asynchronous and not likely to reset correctly.
The top of the Counter properties dialog box has a setting to "Enable Control Input".
This setting specifies whether the module has a control input.
Disable— Specifies that the module has up to 16 input channels but does not have a control input.
If you enable it, you can use the TDC trigger edge to reset the values back to zero.
01-07-2013 02:20 PM
Great, this works! Thanks.
Robert