What would you folks recommend as a reliable and simple frequency measurement circuit that could interface easily with the EMX/USBizi?
I want to measure the frequency of a 3 phase alternator and translate that to RPM’s. I thought I would use the pulse counter ability decribed in:
I need to find a good method to deliver the pulses from the 3 phase output of the altenrator. The alternator operates in the 10-15k rpm range so a pretty high freqency.