Minimize noise

Discussion in 'General Electronics Chat' started by mike K, Feb 2, 2011.

  1. mike K

    Thread Starter New Member

    Jul 31, 2010
    Hello Everyone,
    I am attempting to analyze timing of pulses from two inductive proximity sensors using a tektronix 2200 Digital storage oscilloscope. The problem is that the sensors are in a noisy environment mainly 480vac power feeding power to motors on the equipment ect... My question is. Is there a type of probe I can use to minimize the electrical noise or a method of setting up the scope I am using? I am currently using standard x1/x10 probe. My signal is 24vdc that pulses to 0vdc for 50-200ms at 120 pulses/min.
    Any input would be appreciated. Thanks Mike K
  2. marshallf3

    Well-Known Member

    Jul 26, 2010
    Make a small filter box that either attenuates the 120 Hz of just lets that frequency alone pass.
  3. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    Use a differential probe measurement - if the scope can do it. You just need to carefully match the probes - .... "easy to say" ..... of course!
  4. timrobbins

    Active Member

    Aug 29, 2009
    Does you CRO run off batteries?