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Where are all the ESR meters?

Discussion in 'Electronic Design' started by Fred Bloggs, Jul 21, 2007.

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  1. Fred Bloggs

    Fred Bloggs Guest

    Guess the enthusiasm fizzled when you got into the nitty-gritty of it all...
     
  2. Jim Thompson

    Jim Thompson Guest

    They couldn't find it already done in AoE ;-)

    Where's the meat?

    Where's the fence?

    Where are the designers ?:)

    ...Jim Thompson
     
  3. John Larkin

    John Larkin Guest

    I posted a schematic to abse. Nobody else did anything but blather
    about kelvin clips and dreams of ideal behavior.

    I note that you didn't post a design, either.

    John
     
  4. Winfield

    Winfield Guest

    I'll post mine, when I get enough energy to transcribe
    it from my paper scratchings, calculations and notes.
    Remember, it must be four terminal, and handle high DC
    voltages when probing in-circuit storage capacitors.
     
  5. Jim Thompson

    Jim Thompson Guest

    How high is "high"?

    ...Jim Thompson
     

  6. Why? So you can plagiarize someone else's work, instead of doing
    your own?


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  7. If it was a trivial problem, we would all have $5 meters
    that did it well.
     
  8. I think that the requirement that it must handle "high DC
    voltages" is the easiest to justify eliminating, to open up
    the possibilities. My milliamp meter won't do that, but I
    still find it useful, even though I have to change the fuse,
    occasionally.
     
  9. Fred Bloggs

    Fred Bloggs Guest

    Yep- more like a BOM graphic...

    Right- nada.
    Nope, not yet.
     
  10. Fred Bloggs

    Fred Bloggs Guest

    Do you do any work at all?
     
  11. Fred Bloggs

    Fred Bloggs Guest

    The meters for sale to the techies are trivial, and they sell for around
    $200.
     
  12. John Larkin

    John Larkin Guest

    Actually, I've posted two so far... a simple analog thing with a
    phase-sensitive detector (on 7/5) and a digital multifunction meter
    (on 7/15).
    I thought you didn't design electronics.

    John
     
  13. The Phantom

    The Phantom Guest

    It was a pun! No, wait, it was a palindrome!

    If exaggerating for effect is called hyperbole, what is
    under-exaggeration called? Hypobole?
     
  14. John Fields

    John Fields Guest

     
  15. Fred Bloggs

    Fred Bloggs Guest

    Those methods are too direct. All you end up with is an abbreviated
    impedance analyzer.
     
  16. John Larkin

    John Larkin Guest

    With the goodies available these days, the hardware would be
    near-trivial, for either a frequency or time-domain version. The
    firmware would be work, but firmware is free to manufacture!

    John
     

  17. Do you? Its well known on this group that I am now 100% disabled,
    after almost 40 years of working in the electronics industry. Also, I
    never claimed to be a circuit designer. yes, i have designed and built
    equipment I couldn't find, or get before a critical deadline but it was
    never for public consumption. Almost all were one off, and for whoever
    I was working for at that time. A wide variety items, but of very
    little interest to others.


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     

  18. That was why the Bob parker design uses a .5 V test signal. A pair
    of anti parallel power diodes will discharge a capacitor. Anatek had a
    modification kit for sale to add the protection diodes.

    They compare several popular ESR meters here:

    http://www.anatekcorp.com/testequipment/esrcompar.htm


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  19. Robert Baer

    Robert Baer Guest

    200KV?
     

  20. How many 200 KV Electrolytics have you seen?


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
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