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  1. #1
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    Question Controlling Air Core instruments with OC cards

    Hello,
    we are converting a Caravelle cockpit into a fixed base simulator. The cockpit we own has been partially converted into a simulator in the early 1980s. Unfortunately the project was abandoned due to costs. Over 20 instruments have been converted to Air Core Instruments and still work perfectly...but: how to control them in SIOC?
    Any ideas?
    Many thanks

    SudAviation.com - Caravelle website » Everything related to the SE210 Caravelle team

  2. #2
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    Re: Controlling Air Core instruments with OC cards

    Quote Originally Posted by Caravelleflyer View Post
    Hello,
    we are converting a Caravelle cockpit into a fixed base simulator. The cockpit we own has been partially converted into a simulator in the early 1980s. Unfortunately the project was abandoned due to costs. Over 20 instruments have been converted to Air Core Instruments and still work perfectly...but: how to control them in SIOC?
    Any ideas?
    Many thanks



    SudAviation.com - Caravelle website » Everything related to the SE210 Caravelle team



    I'm sorry, I can't help with this one as this is a 'Mechanical' forum, software is not my expertise! someone may have a reply for you!
    Cheers Westozy

    737NG using Prosim737, Immersive Calibration Pro, Aerosim Solutions motorized TQ & cockpit hardware, CP Flight MCP & FDS SYS1X, SYS2X & SYS4X, FDS PRO FMCs, AFDS units & Glarewings, Matrix Orbital ELEC display, Pokeys Landing & Cruise alt display, Buttkicker Gamers, 3 x BenqMW811ST projectors with a Matrox Th2Go
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  3. #3
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    Red face Re: Controlling Air Core instruments with OC cards

    You can use a USB DCMotors Card, and a few resistors to limit current, to control 6 air cores.
    After that, its simple to program in SIOC.

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    500+ This must be a daytime job



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    Re: Controlling Air Core instruments with OC cards

    Hi,
    You didnt say if your Aircored movements have driver cct included. Have a look at this site and if you need further
    help just ask.

    Simulated Aircraft Instruments

    Les

  5. #5
    Our new friend needs to reach 10 posts to get to the next flight level



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    Re: Controlling Air Core instruments with OC cards

    Many thanks for your replys, guys. Should have posted in the software forum but it is a bit of both actually.
    The air core motors don't have drivers included, they are very old too.

    BTW, hyamesto: Is it possible to control air motors in the milli Volts? Most air cores operate between 0 and 411mV. Can DC cards handle this (with resistors obvisously).

    Regards
    nils

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    Re: Controlling Air Core instruments with OC cards

    This is a very fascinating project. This might help you:

    Baufortschritt meines twin engine cockpit - Home Cockpit - Das Forum für "Bastler" - FlightX.de - das größte deutschsprachige Forum der Flugsimulation

    I found this discussion some months ago and they´re talking about converting real instruments into simulated instruments. They also habe some ideas for a possible soic code to controle the aircore instruments with an oc dc motor card. The site is in german, but I think you will understand due to your location.

    best regards

  7. #7
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    Re: Controlling Air Core instruments with OC cards

    Nils:

    The USB DCMotors can drive 6 dc motors up 1 amper and 36 volts, with PWM (pulse-width modulation).
    Read the USB DC Motors Card manual:

    http://www.opencockpits.com/index.php/es/descargas?task=callelement&format=raw&item_id=209&element=f85c494b-2b32-4109-b8c1-083cca2b7db6&method=download&args[0]=a0c3abe4cae701462dc07b03f3dff60f

    If you use 5 volts to feed the card, and use a resistor, you don´t need any driver to control the air core, and you can control the turn direction. (useful with 360 degrees air core movement, using two outputs of the card).
    Let me know your progress.
    Regards.

  8. #8
    Our new friend needs to reach 10 posts to get to the next flight level



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    Re: Controlling Air Core instruments with OC cards

    Hello,
    thanks for your inputs and sorry for my late reply. Have been busy with the actual restoration of the cockpit. Finally tried both the USB Servo card and DC with resitors on the air core motors. While the needles of the air core actually moved the way they should they start to jitter/tremble when the power is increased to full deflection. any idea what the reeason for this might be?
    Many thanks
    Nils

    Quote Originally Posted by hyamesto View Post
    Nils:

    The USB DCMotors can drive 6 dc motors up 1 amper and 36 volts, with PWM (pulse-width modulation).
    Read the USB DC Motors Card manual:

    http://www.opencockpits.com/index.php/es/descargas?task=callelement&format=raw&item_id=209&element=f85c494b-2b32-4109-b8c1-083cca2b7db6&method=download&args[0]=a0c3abe4cae701462dc07b03f3dff60f

    If you use 5 volts to feed the card, and use a resistor, you don´t need any driver to control the air core, and you can control the turn direction. (useful with 360 degrees air core movement, using two outputs of the card).
    Let me know your progress.
    Regards.
    www.SudAviation.com - the Caravelle Simulator Project

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    Re: Controlling Air Core instruments with OC cards

    Nils:
    The jitter/tremble depends of the the instrument´s ballistic. Try to put an electrolitic condenser in parallel to the aircore, to soften the reading.
    What value?
    It´s depends of the aircore.
    Try 10mf at first, and rise or low the value, to see how change the response.
    Maybe another person can help you better than I.
    Regards.
    Horacio.

  10. #10
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    Re: Controlling Air Core instruments with OC cards

    Look this:
    Homecockpit - Twin GA - real Piper Shell: Analog Instrument mit träger Anzeige
    He puts a 1000 nf condenser.
    Regards.
    Horacio.

    Quote Originally Posted by hyamesto View Post
    Nils:
    The jitter/tremble depends of the the instrument´s ballistic. Try to put an electrolitic condenser in parallel to the aircore, to soften the reading.
    What value?
    It´s depends of the aircore.
    Try 10mf at first, and rise or low the value, to see how change the response.
    Maybe another person can help you better than I.
    Regards.
    Horacio.

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