- #1
usmansaleem
- 1
- 0
i am making a tachometer which will count pulses from an inductive pikup connected to an HT lead on an engine. i am having great difficulty when measuring my signal from the pick up as there is a huge amount of noise. can anyone raccomend the best way to clean this up? someone mentioned an active low pass filter, maybe a third order but i am not too familiar with these. any information will be appreciated.