Low pass filter a data file

Discussion in 'General Electronics Chat' started by paultwang, Apr 17, 2006.

  1. paultwang

    Thread Starter Well-Known Member

    Mar 8, 2006
    I have a data file of pressure measurements of an animal heart in the form of Pressure vs Time. However, the sensor picked up some mains line noise (60 Hz). How do I low-pass filter it?

    The data file is in the form of:
    time1 pressure1
    time2 pressure2
    time3 pressure3

    The interval is not the same. However, I can interpolate to fix it.
  2. beenthere

    Retired Moderator

    Apr 20, 2004

    If your data files have enough continuity to run a FFT, then do that and drop out the values clustered around 60 Hz.