Tach pulse calculation

Discussion in 'Math' started by Art, Feb 27, 2012.

  1. Art

    Thread Starter Distinguished Member

    Sep 10, 2007
    785
    61
    Hi Guys,
    This one is doing my head in...

    If the tachometer signal from my ECU sends five pulses per revolution,
    How do I calculate Revolutions Per Minute if the input I can provide is the number of pulses sent in one second?
    Cheers, Art.
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,440
    3,361
    N pulses/second = N *60 pulses/minute = N *60/5 revolutions/minute.

    Take N and multiply by 12 = RPM
     
  3. Art

    Thread Starter Distinguished Member

    Sep 10, 2007
    785
    61
    Thanks, much appreciated :)
     
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