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Tiny Solenoid

Discussion in 'Electronic Basics' started by Sam, Apr 28, 2006.

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  1. Sam

    Sam Guest

    X-No-Archive

    Hey, I'm new here and I hope I'm posting in the most relevant group.

    I'm looking for a way to create a tiny vibration. I'm guessing that the
    easiest way to do this is with a little solenoid that I activate at the
    frequency of my choosing. I've never used a solenoid though, and am
    pretty new to electronics so I am kind of lost.

    I looked on mouser and digikey, but most of what I saw was fairly high
    voltage and way out of my price range. I'm looking for something about
    the size of a pencil eraser that only needs 3 volts and costs as little
    as possible.

    Can anybody point me in the right direction? Maybe I'm searching for
    the wrong thing...

    Thanks
    Sam
     
  2. Tim Auton

    Tim Auton Guest

    How tiny a vibration? What does it have to move? Over what range of
    frequencies?

    You might look at small speakers, perhaps in-ear headphones, for a
    small and cheap 'actuator'. You won't get much force or amplitude from
    one, but they do make tiny vibrations and work with low-voltage
    inputs.


    Tim
     
  3. Greg Neill

    Greg Neill Guest

    How about a teensy DC motor with an imbalanced
    weight on its rotor?
     
  4. Bob Eld

    Bob Eld Guest

    A solenoid may not be what you want. Solenoids will produce pull in when
    driven regardless of polarity and are not usually used in that manner.While
    some vibration may occur they will be very inefficient at producing it. What
    frequency do you want to vibrate? Most vibrators like those used in cell
    phones and sex toys use an eccentric weight on a small motor and vibrate at
    the rate the motor runs. They are efficient. Check Mouser and Jameco for
    "vibrating motors." Jameco has a whole bunch of them both 1.5 and 3VDC.
    Bob
     
  5. JeffM

    JeffM Guest

  6. Guest

    X-No-Archive

    Thank you for your kind replies. I found a motor on Jameco that looks
    perfect for my needs. I'm glad I just asked instead of trying to figure
    something out with a bouncing solenoid.

    No need to be snotty Jeff. Especially when you're wrong.

    Check out
    http://groups.google.com/support/bin/answer.py?answer=7918&query=x-no-archive&topic=0&type=f

    I'll quote from it, "Any post that contains the text "X-No-Archive" in
    either the header or the first line of the message (with no additional
    text included on that line) will be displayed on Google Groups for only
    seven days and won't be searchable after it's removed."

    So putting X-No-Archive in the first line of my post had exactly the
    effect that I wanted it to.
     
  7. Sam

    Sam Guest

    X-No-Archive

    Sorry about that last message being under someone else's account. I was
    on a library computer and submitted it before realizing that someone
    had left themselves logged in.

    Thank you for your kind replies. I found a motor on Jameco that looks
    perfect for my needs. I'm glad I just asked instead of trying to figure
    something out with a bouncing solenoid.

    No need to be snotty Jeff. Especially when you're wrong.

    Check out
    http://groups.google.com/support/bin/answer.py?answer=7918&query=x-no...

    I'll quote from it, "Any post that contains the text "X-No-Archive" in
    either the header or the first line of the message (with no additional
    text included on that line) will be displayed on Google Groups for only
    seven days and won't be searchable after it's removed."

    So putting X-No-Archive in the first line of my post had exactly the
    effect that I wanted it to.
     
  8. Look who's being snotty now.
    But why???? The whole purpose of this is to build a repository of
    information that others may find useful in the future. By doing it
    "your way", you are depriving future archive readers of the context of
    your post. Why wouldn't you want to give that tiny thing back to the
    very people that you expect to help you now? Are you just that selfish?
     
  9. JeffM

    JeffM Guest

    X-No-Archive
    I acknowledge my error.
    I'm used to seeing Google flag these things in bold.
    This must be the 1st time I've seen it used
    by someone posting from Google.

    You should realize that this isn't Google Groups; this is Usenet
    and Google Groups is but one way to access Usenet. [1]
    There other repositories out there which WILL archive it.
    ..
    ..
    I agree with Fremont's commentary on selfishness.
    ..
    ..
    [1] At this point, many will say the inferior way.
     
  10. Sam

    Sam Guest

    X-No-Archive

    Believe me, I understand quite well what usenet is and what google is.
    Google might not be the best way to post on usenet, but it certainly is
    one of the cheapest.

    I'm sorry if I appeared snotty, I was just a little put off by the fact
    that I was told I didn't know what I was doing when I knew that I did.
    And "<shakes head>" is snotty too Fremont. So here's my most honest,
    non-snotty reply:

    I'm not trying to stop my posts from being archived everywhere, just
    specifically not on google. I know exactly what I'm doing and I don't
    see how this is selfish at all, the entire text of my question was
    quoted in another message. Any person who is searching for a phrase or
    word found in my question will still find Bob's and Tim's posts which
    contain inciteful replies. The only thing that I've changed is that
    someone searching specifically for posts where I'm the author won't
    find the thread. Maybe when I'm applying to a job I might not want my
    future employer finding a string of posts where I say I've never worked
    with solenoids and ask how to stop an overflowing toilet. Maybe that's
    a little selfish, but I don't think it's unreasonable. Please don't
    reply to this, this post has gone on far too long already. I'm sorry if
    I ruffled anybody, I just wanted to ask a basic electronics question on
    sci.electronics.basics.
     
  11. Phil Allison

    Phil Allison Guest

    "Sam"

    ** Most replies on usenet are of the "inciteful" kind.

    Shame how few contain any insight.





    ........ Phil
     
  12. Isn't it supposed to be x-no-archive: yes?
     
  13. Shhh......he already knows what he's doing. ;-)
     
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