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Type: Posts; User: vamsee

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    Closed: Aerogel - Heat insulator

    Hi all,

    can anyone know the cost of Aerogel and where can i buy it?
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    Closed: Re: circuit connection for hall sensor

    Hi tpetar,

    one more clarification from u.. watever the sensor is, we should be able to measure quiescent voltage, but i am not able to measure tat... :???:

    u can check this...
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    Closed: Re: circuit connection for hall sensor

    so i can use the sensor i am having now without the load...?

    actually i am measuring same voltage reading across the load and directly from sensor output...
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    Closed: Re: circuit connection for hall sensor

    please see the attachment page 5...

    he also used sensor similar to me and his apllication also somewat similar..
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    Closed: Re: circuit connection for hall sensor

    thanq for the reply..

    i need voltage output with proportional to the magnetic field..

    the current must be passed through the hall element in the sensor, then only we get the voltage.. What do u...
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    Closed: circuit connection for hall sensor

    8739787398

    i am using hall sensor and i have connected as shown in the attached picture.. As in the datasheet mentioned, the quiscent voltage of about 2.5V is not coming.. Instead i am measuring I...
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    Closed: Re: problem with my ratiometer hall sensor

    Will this type of circuit helps in continous signal?
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    Closed: problem with my ratiometer hall sensor

    Hi!!

    I am using this hall sensor http://docs-europe.electrocomponents.com/webdocs/0d88/0900766b80d88153.pdf

    i got 2 problems:

    1. When i vary the magnetic field, the hall sensor is acting...
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    Closed: Re: high pressure cabeling

    thank you for the reply.

    I have selected the hall sensor because it has high operational temperature.. http://docs-europe.electrocomponents.com/webdocs/0d88/0900766b80d88153.pdf

    yes u r...
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    Closed: high pressure cabeling

    86658

    Hi all!! the picture shows the attachment of my magnet to the ball valve and placement of hall sensor...

    I need to house or cable the hall sensor, such that it withstands 100 bar pressure...
  11. Closed: Re: quiscent voltage as mention in my hall sensor

    i am soldering for the first time. will the hall output shows the output though i burnt the device?
  12. Closed: Re: quiscent voltage as mention in my hall sensor

    HI all!!

    I tried with new hall sensor of the same type and made connections.. but still it showing 0.7V when there is no magnetic field.. why i am not getting 2.5V??:???:
  13. Closed: [MOVED] Tips needed on soldering prototype PCB

    Hi,

    I'm ready to move from plastic breadboard to the soldering type of prototype PCB. What i immediately notice is that I'm missing the very useful "connected strips" - those long strips that run...
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    Closed: wiring in D15 port of my DAQ

    Hi all!!

    I am using data acquisition, in which it has D25 as output and D15 port as input.. the D25 is connected to the PC thru the cabel.. I am using 3 pin hall sensor, the output of it should be...
  15. Closed: Re: quiscent voltage as mention in my hall sensor

    Ok now i will tell u wat i have done... Without using any proto circuit board, i directly soldered the wires to the pins... i have taken the wires from the 9V battery and soldered to the 5V voltage...
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    Closed: Re: High temperature fixing

    now got it!! actually, there r no forces acting on magnet.. the magnet is just fixed the ball valve.. Now my problem is how to attach this magnet to the ball valve surface, and this should be...
  17. Closed: Re: quiscent voltage as mention in my hall sensor

    i am using 3 pin SOT ratiometric hall sensor http://docs-europe.electrocomponents.com/webdocs/0d88/0900766b80d88153.pdf
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    Closed: Re: High temperature fixing

    wat do u mean by doesnt make any sense, is tat impossible??
    thanq
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    Closed: Re: High temperature fixing

    the size of the ball valve is 30cm in diameter and magnet size is about 30mm in diameter and 10 mm in thickness...

    the ambient temperature is about 200°C which may act as separating force..
  20. Closed: Re: quiscent voltage as mention in my hall sensor

    No, I measure 5V between output and gnd of 5v voltage regulator and 0.7V between output and gnd of hall sensor
  21. Closed: Re: quiscent voltage as mention in my hall sensor

    ya! it shud show 2.5V, but it showing only 0.71 :???: wat might be the problem?

    - - - Updated - - -



    i did!!! but still the same
  22. Closed: quiscent voltage as mention in my hall sensor

    i am just checking my hall sensor.. i connected my hall sensor to 9V battery via 5V voltage regulator.

    in the datasheet it mention the quiscent voltage is 2.5V, that is without any magnetic...
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    Closed: High temperature fixing

    hi!!

    i want to attach big steel ball with small magnet.. how do i attach it? this should not separate even at 200°C

    thanq
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    Closed: Re: bare wire solderings

    [QUOTE=barry;1192171]aren't you worried about them shorting out?[/

    ya!! but just wanted to know..
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    Closed: bare wire solderings

    is tat possible to solder 3 pin hall sensor with bare wires for long cabling?
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