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data logger/voltmeter

Discussion in 'Electronic Basics' started by Andrew Moffat, May 27, 2004.

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  1. I need a data logger that has a resolution of 0.1 microvolts, is there such
    a thing that doesn't cost the earth?
  2. Bob Masta

    Bob Masta Guest

    I don't have an answer for you, but you need to consider more than
    just resolution. What is the total range of values you must handle?
    Does it need to include bipolar, or only unipolar values? A 16-bit
    bipolar system can handle a range of +/-32767 times its resolution,
    for example. At 0.1uV resolution, you'd be able to handle +/- 3.2767
    mV before overload. You should expect that you might
    need a preamp to boost your signal so its range fits with the
    range of the system, which will probably be something like 1V,
    0.5V, 0.1V, etc.

    Bob Masta

    D A Q A R T A
    Data AcQuisition And Real-Time Analysis
  3. Soeren

    Soeren Guest

    Hi Andrew,


    What on earth (pun intended) do you want to do ?


    * If it puzzles you dear... Reverse engineer *
    New forum: <URL:>
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