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  • #1

    Variable coil damping

    I just noticed that this patent expired, now to build detectors with decay feedback systems.

    https://patents.google.com/patent/US7075304B2/en
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  • #2
    Hi detectormods,
    Just see the posts from Moodz for active damping with feedback solution

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    • #3
      Carl Nelson had a number of PI patents for Johns Hopkins. Worth reading.

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