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Thread: Pickup Gaussmeter v.3.0

  1. #1
    Senior Member -Elepro-'s Avatar
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    Pickup Gaussmeter v.3.0

    i have not many time but i'm trying to finish the definitive prototype....
    here the photo of the PCBs.... the small one is for the dual sensor (double side) probe....
    other pictures soon.....

    bye
    Attached Thumbnails Attached Thumbnails gaussmeter.jpg   gaussmeter_2.jpg  

  2. #2
    Senior Member -Elepro-'s Avatar
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    finished...it works very well.....i will post soon a pdf with user manual....
    Attached Thumbnails Attached Thumbnails gauss-005.jpg   gauss-003.jpg   gauss-002.jpg   gauss-001.jpg  

  3. #3
    Senior Member -Elepro-'s Avatar
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    Features:
    • Range +/- 5375 gauss (with AD22151 sensor) or +/- 1650 Gauss (with A1302 sensor)
    • Normal, peak-hold and average mode
    • 1024 sample per reading in normal mode, 64 in hold peak and 131k in average mode
    • On board tactile push buttons to reduce cost and wiring
    • Two sensor (double face) probe with storable calibration (sensivity value from 0.250 to 6.000 mV/gauss) and polarity for each one
    • Auto zero set at start-up and at sensor change... + zero set button
    • Lcd backlight button


    for who want buy the gaussmeter... i sell PCB+MCU at 30 euro (i have 11 pcb)

    for the other components:

    link at mouser basket


    or

    here the list: (Mouser code and description)

    652-3362F-1-103LF .........10kohm trimmer
    271-47-RC .....................R47ohm
    271-100-RC .................. 2 X R100ohm
    271-10K-RC ...................2 X R10kohm
    505-MKS2.1/63/5 ...........2 X 100nf
    505-MKS20.33/63/5 ...........330nf
    MKS02-.1/63/10 ................100nf
    512-BS170D75Z .................. 2 X bs170
    512-BC327 .........................bc327
    512-1N5819 .................. 2 X 1n5819
    571-1-390261-9 ............ DIP28 socket
    612-TL1105LF250Q ........ 4 X tactile push 17mm
    763-0216K1Z-FSW-FBW ........ display 16X2
    538-67643-0910 .............. usb conn
    511-L7805ACV ................. 7805
    517-929834-01-16 ................ lcd header


    in the list i did not count male connector and cable for probe.... everyone has an unused usb cable at home....

    sensors are not in the list

  4. #4
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    I'm in!
    I figure resistance is futile...

    Now... about that LCR meter...

    BTW the Mouser shopping list adds up to $25 w usps shipping. The A1302 sensors are $1.50 while the AD22151 are more like $20 ea off ebay..
    http://cgi.ebay.com/10-x-A1302-ALLEG...-/180506304302
    Last edited by David King; 06-02-2010 at 07:47 PM. Reason: add pricing

  5. #5
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    Quote Originally Posted by -Elepro- View Post
    Features:

    for who want buy the gaussmeter... i sell PCB+MCU at 30 euro (i have 11 pcb)
    Looking good, I'm in.
    (And hi everyone, my first post )

    Pavel

  6. #6
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    Hi, it's my first post to.

    i'm in to.

    great work Elepro

  7. #7
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    I'm in

    Count me in for one.

  8. #8
    Supporting Member belwar's Avatar
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    Count me in for 3.

  9. #9
    Woodgrinder/Pickupwinder copperheadroads's Avatar
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    count me in as well if theres no problem with shipping it to canada

  10. #10
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    That leaves only three.

    I multiplied the mouser order out by 11 and it comes to $191, no big savings there except on shipping which is hardly a consideration compared to sorting out all the parts and mailing off a dozen packages. I would consider having Elepro send all US-bound boards to one address via the most secure way we can afford and redistributing them from within this continent. It might make sense to split Canadian orders off from the US ones just to save the 2 weeks per border crossing.
    Last edited by David King; 06-03-2010 at 06:18 AM.

  11. #11
    Pickup Maker David Schwab's Avatar
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    Quote Originally Posted by David King View Post
    That leaves only three.
    Oh... is this a group buy? Well count me in then!
    It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure. Albert Einstein


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  12. #12
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    I imagine Elepro can get more boards made up if needed in another 4-6 weeks if there's lots of interest?

  13. #13
    Senior Member mkat's Avatar
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    I'm in.
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  14. #14
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    I am in for one if no problems with shipping to TEXAS.

    Thanks
    Stan

  15. #15
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    Quote Originally Posted by David King View Post
    That leaves only three.

    I multiplied the mouser order out by 11 and it comes to $191, no big savings there except on shipping which is hardly a consideration compared to sorting out all the parts and mailing off a dozen packages. I would consider having Elepro send all US-bound boards to one address via the most secure way we can afford and redistributing them from within this continent. It might make sense to split Canadian orders off from the US ones just to save the 2 weeks per border crossing.

    This sounds like a good idea.

  16. #16
    Senior Member -Elepro-'s Avatar
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    .... about shipping, in the cost of 30 euro is included an economic shipping by letter.... it is not trackable and not insured but i think it's the fast/economic method.... i sent a PCB to David king some times ago and it took 7 days to Portland Oregon....

    i could ship by another economic method (registered letter)... it is trackable (not insured) but this slow down the delivery because it has to be processed and registered when it arrives in US.... i sent a cnc winder controller a month ago (full price...out of group-buy) to Las Vegas and it took 20 days...

    let me know....


    Quote Originally Posted by David King View Post

    Now... about that LCR meter...
    not started yet... just something in my confused mind....

  17. #17
    Senior Member -Elepro-'s Avatar
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    if all of you confirm purchase you are 11.... and i have 11 PCBs.... i will order other PCBs when these will be shipped

    at this moment:

    David King
    Pavel
    T-minik
    Folkcafe
    Belwar X3
    Copperheadroads
    David Schwab
    Mkat
    BadHorsie

  18. #18
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    I confirm, I'm in for one !

    But I've got all parts at home and I'm not interested by a group buy at Mouser.
    sorry.

  19. #19
    Senior Member mkat's Avatar
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    Quote Originally Posted by -Elepro- View Post
    .... about shipping, in the cost of 30 euro is included an economic shipping by letter.... it is not trackable and not insured but i think it's the fast/economic method.... i sent a PCB to David king some times ago and it took 7 days to Portland Oregon....

    i could ship by another economic method (registered letter)... it is trackable (not insured) but this slow down the delivery because it has to be processed and registered when it arrives in US.... i sent a cnc winder controller a month ago (full price...out of group-buy) to Las Vegas and it took 20 days...

    let me know....




    not started yet... just something in my confused mind....
    Are you OK with shipping to Australia?
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  20. #20
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    I am also confirmed. Just need to know how you want the payment.

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    I am confirmed. Am I correct in my conversion of 30 euro being 36.74 US dollars.

  22. #22
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    you're right BadHorsie, it can be a little more according to the payment method.

  23. #23
    Senior Member -Elepro-'s Avatar
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    please not dollars but euro.... if you send me your paypal email by PM i will send you a payment request....

    i will ship all monday... (...not problem for Texas & Australia)

    thanks at all
    bye

  24. #24
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    done for me

  25. #25
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    I've sent a private message with my email address but I am not certain private messaging is working as it is not showing up in sent messages. If you have not received it, please let me know. Otherwise I will wait for your payment request.

  26. #26
    Old Timer defaced's Avatar
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    The state of the message is shown by what folder it's in:
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  27. #27
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    Yes I understand 30 euro (You need to be paid in your native currency) . I was just trying to verify what the cost was to me in us dollars. PM sent.

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    Thanks Elepro received PayPal payment request. 30 Euro sent your way.

    For those interested PayPal Conversion Rate as of Jun 3, 2010: 1 U.S. Dollar = 0.801903 Euros. The total came up to 37.42 US dollars with no additional PayPal fees.

    I can't wait to get this. I might need a little help along the way from you guys to get it assembled.
    Last edited by BadHorsie; 06-03-2010 at 08:38 PM.

  29. #29
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    I'm still in! PM sent.
    I have no problem with the airmail delivery. It worked just fine last time and tracking is overrated.
    Bad Horsey,
    You shouldn't have any trouble getting help from folks around here.

  30. #30
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    Thanks David!!

    Stan

  31. #31
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    Quote Originally Posted by defaced View Post
    The state of the message is shown by what folder it's in:
    Outbox means the person hasn't read it
    Sent means the person has
    Still not showing up and there is no outbox in the user CP. The good news is that Elepro did receive the PM and I received the payment request. Already paid and next is ordering the parts.

  32. #32
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    Anyone have an idea for a box to house this.

  33. #33
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    Quote Originally Posted by BadHorsie View Post
    Anyone have an idea for a box to house this.


    It would be nice to select an appropriate enclosure for this from Mouser so we can get that at the same time.

    Also it looks like one of the caps is backordered at Mouser in the US, perhaps a substitution is in order?

    Actually two items, the .1mfd cap and the 16 post header (517-929834-01-16 ................ lcd header).
    Last edited by David King; 06-03-2010 at 09:42 PM. Reason: details, details

  34. #34
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    estimated arrival date for the cap is june 23rd and the header has a 4 week lead time. I went ahead and ordered anyway as I am in no particular hurry. I'll be on the road pretty constantly for all of june.

    Others may want to look into a substitute.

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