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Using a GY401 for stablization

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  • Using a GY401 for stablization

    I know there are some pretty smart electronics types on this forum, i thought i'd put this question out there:-

    I'm making version 2 of my camera mount and would like to employ some basic stabilization. Initially I'll focus on one axis, and was planning to try a spare clone 401b gyro. However the gain needs a signal, and my question is - does this signal consist of some form of digital pulse or is it essentially a constant voltage?

    Hope the question makes sense.

  • #2
    How about using a servo tester to control your gyro gain, the same method can be used to free up the gear channel when you are flying a scale with retracts if you only have a 6 channel radio.

    This video isn't that clear but it might help

    [URL="http://www.youtube.com/watch?v=D_AOBJNrgUk"]Gyroscopic camera stabilisation (testing) - YouTube

    [/URL]Not sure about the digital pulse or constant voltage.
    Last edited by simplyraptor; 30-12-2011, 11:17 PM. Reason: reread the question
    Martin

    x2
    Rave 450
    Trex 250se
    DX7se

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    • #3
      Hi,
      every system I know (Graupner, Jeti, Robbe aso.) uses definitely a digital pulsed system.
      Walter

      T-Rex 250 - T-Rex 450 - Acrobat SE - Voodoo 600 - Acrobat Shark

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      • #4
        You need a servo signal. for sure. it wont work without. the servo tetser is agood idea because then you have an onboard adjustment for the stabilisor but a spare channel would be better

        Steve
        Steve...

        Outrage RC Field Rep


        Now enhanced with some more EGS's....

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        • #5
          The gyro needs to be given a signal that it uses as the no rotation reference. This often needs to be very close to the centre value of around 1.5ms. There are lots of simple timer circuits. The gap between pulses needs to be about 20ms for analogue servos. There is a range of value for digital servos and corresponding settings for the gyro. Some of the cheap clones need to be hot glued. There is an Assan servo that has mems available. For people using this for FPV the gyro will need to be mems or sms to handle temperature changes.
          Flasher 450 Sport. Assan GA250 with 520 tail servo, MKS DS450 cyclic.
          Multiplex Cockpit Tx, DX7, DX6i
          Blade 130-X, MSR, MSRX
          Phoenix Sim

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