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Magnetometer MWB2.

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  • Qiaozhi
    replied
    Originally posted by Badim33 View Post
    Добрый день не подскажите какие флюз биты при прошивке используются ?
    Please read the forum rules -> Basic Rules of the Forums
    and make your posts in English.

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  • Badim33
    replied
    fluze Bits there is ?
    Last edited by Badim33; 11-19-2025, 04:03 PM.

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  • Badim33
    replied
    Fuse Bits ?

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  • j570
    replied
    I found this project interesting, so I decided to do it. It's not easy because, as I mentioned, there's no component layout, which is a bit tricky with SMD. I tried to create my own board layout, but I'm still missing a few components. I'm leaving out the resonant capacitors and the 220uF electrolytic capacitors. Can someone help?


    Click image for larger version

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    Click image for larger version

Name:	Side B components.jpg
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    Attached Files

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  • j570
    replied
    Gerber files does not contain element descriptions or outlines. The lay6 file contains element outlines, but it's unclear which element it is, for example, R5 or R8. There are no letter symbols. Do you have a drawing or file that would solve this problem?

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  • Altra
    replied
    Thank You Fisher

    An old patent for a similar sensor

    Attached Files

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  • Fisher
    replied
    Originally posted by Altra View Post
    Nice project! Thanks for posting.

    What proton-rich liquid did you find best for your sensor?
    I use purified kerosene.

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  • Altra
    replied
    Nice project! Thanks for posting.

    What proton-rich liquid did you find best for your sensor?

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  • j570
    replied
    Originally posted by Fisher View Post
    The sensor's inductance, together with capacitors C22, C28, C34, C35, C36, and C37, forms an oscillatory circuit. This circuit is tuned to the following frequency ranges:
    Range 6 - C37 - 3320Hz
    Range 5 - C34 - 2869Hz
    Range 4 - C36 - 2463Hz
    Range 3 - C35 - 2111Hz
    Range 2 - C28 - 1800Hz
    Range 1 - C22 - 1511Hz
    What type of capacitors did you use? What type of dielectric? Relay R2-Nil-1C-12. Could you suggest an analogous type? I can't find one. Could you attach a picture of the board so we can see the component layout or do you have a file with the component layout on the board? I'm planning to build this magnetometer, so I have some questions.

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  • Fisher
    replied
    Originally posted by j570 View Post
    Thank you very much. Could you describe your experience with this magnetometer? What are the typical detection ranges? For example, a shovel, a car?
    The magnetometer detects a magnetic anomaly from a passenger car at a distance of 8-12 meters. This range depends on the vehicle's position relative to the Earth's magnetic field and the magnetometer's relative position. A T-34 tank is detected at a distance of approximately 20 meters. A DP-27 machine gun is detected at a distance of approximately 6 meters.

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  • Fisher
    replied
    The sensor's inductance, together with capacitors C22, C28, C34, C35, C36, and C37, forms an oscillatory circuit. This circuit is tuned to the following frequency ranges:
    Range 6 - C37 - 3320Hz
    Range 5 - C34 - 2869Hz
    Range 4 - C36 - 2463Hz
    Range 3 - C35 - 2111Hz
    Range 2 - C28 - 1800Hz
    Range 1 - C22 - 1511Hz

    Leave a comment:


  • Fisher
    replied
    Originally posted by j570 View Post
    The photo from inside the magnetometer shows a NEO-M8N GPS module, and the parts list shows a Beitian BE-800. Which module should I use?
    You can use both the first and second. Both work. $GNRMC​ and $GNGGA, UART baud rate = 9600 - required parameters.​

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  • j570
    replied
    The photo from inside the magnetometer shows a NEO-M8N GPS module, and the parts list shows a Beitian BE-800. Which module should I use?

    Leave a comment:


  • Fisher
    replied
    Originally posted by j570 View Post
    Hello. Very interesting project. Could you please publish the Gerber files and the parts list?
    List of parts.
    Attached Files

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  • j570
    replied
    Thank you very much. Could you describe your experience with this magnetometer? What are the typical detection ranges? For example, a shovel, a car?

    Leave a comment:

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