What to do with some new equipment

Discussion in 'General Electronics Chat' started by PDubya, Apr 17, 2007.

  1. PDubya

    Thread Starter Member

    Mar 16, 2006
    28
    0
    I've come into a scope and function generator and have no idea how best to utilize these new tools. Any suggestions would be greatly appreciated! :)
     
  2. DrNick

    Active Member

    Dec 13, 2006
    110
    2
    build an amplifier! man I wish I had a scope and function generator...
     
  3. PDubya

    Thread Starter Member

    Mar 16, 2006
    28
    0
    I thought it would be a great tool to help understand PWM better. I need to find a resource on how to get started with PWM/PICs.
     
  4. Tube Tech

    Active Member

    Jan 11, 2007
    46
    0
    If the scope is fast enough, check out video signals. Very complex signals.

    Get an LMH1981, build a sync separator.

    http://www.national.com/images/pf/LMH1981/20174502.pdf

    If you have X and Y inputs, make Lissajous patterns.

    Quick fuse check: Touch one end of the fuse, connect the other end to the scope input. Good fuse, you see 60 Hz. Fubar fuse, you see nothing.

    if you have a fast-rise pulse generator, make a Time Domain Reflectometer.

    http://www.epanorama.net/circuits/tdr.html
     
  5. PDubya

    Thread Starter Member

    Mar 16, 2006
    28
    0
    Wow, the Lissajous patterns seem pretty nifty - how fast does the scope need to be. What I've got is a 20mhz scope that has the dual inputs, and this function generator: http://www.testequity.com/products/1000/
     
  6. Tube Tech

    Active Member

    Jan 11, 2007
    46
    0
    Any poky old gray haired grandpa scope can do Lissajous. When you see a scope on TV, in the movies, it usually has a Lissajous pattern on it. Doesn't flicker, like a sweeping trace would.

    20 mHz would be fine for video.

    Does it have a delayed sweep function? Lets you capture a portion of a horizontal sweep, expand that to full width. Lets you see a subframe within a frame of data.

    OOPic, PWM links:

    http://www.oopic.com/

    http://www.oopic.com/servo.htm

    http://www.4qdtec.com/pwpm.html

    http://www.omegaco.demon.co.uk/mectnpdf/mectn003.pdf

    http://www.omegaco.demon.co.uk/mectnpdf/mectn004.pdf

    http://www.omegaco.demon.co.uk/mectnpdf/mectn005.pdf

    http://www.seattlerobotics.org/guide/servos.html

    http://www.epanorama.net/links/motorcontrol.html
     
  7. BrianH

    Active Member

    Mar 21, 2007
    43
    0
    If you're going to be probing around in mains circuits, be very careful you can easily damage the equipment!

    I've been working on a personal project where I transmit digital information over the mains and I accidentally damaged my Probe 1 input on my Tektronix 3032.

    Brian
     
  8. Tube Tech

    Active Member

    Jan 11, 2007
    46
    0
    ruh'ro, rorge.

    My mistake. What I meant was: with the scope probe hanging out in empty space, touch the tip. Your body acts like an antenna, picks up 60 Hz. To test a fuse, hold it by one end and touch the other end to the scope probe. See 60 Hz, fuse is good.
     
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