Connect with us

H2 gas sensor project

Discussion in 'Sensors and Actuators' started by rdevendrakumar1989, Aug 9, 2012.

  1. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    Hai Friends,

    Am decided to develope H2 gas sensor. Give me an idea to develope the circuits.
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    9,398
    1,920
    Nov 17, 2011
    Double post :(
     
  3. Harald Kapp

    Harald Kapp Moderator Moderator

    9,398
    1,920
    Nov 17, 2011
    Your post in the project log section should be removed.

    What type of H2 sensor are you going to use? Do you have a partucular component in mind? If so, look in the datasheet, normally you'll find application information there.
     
  4. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    Using Mosfet
     
  5. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    I found there are 2 detection methods are there.. 1. Calorimetric Detection - Gas concentration Vs. Temperatutre Rise
    2. Conductivity Detection - Gas concentration Vs. Electrical conductivity Change
     
  6. Harald Kapp

    Harald Kapp Moderator Moderator

    9,398
    1,920
    Nov 17, 2011
    A MOSFET is no H2 detector. Do you want to build the detector from scratch? Or are you going to use a commercial sensor with some hardware for signal conditioning?
     
  7. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    ya i like to use commercial sensor... Am also decided to fabricate the sensor..
     
  8. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,214
    2,695
    Jan 21, 2010
    So are you wanting to build a circuit to use an already existing sensor, or do you want to build a sensor?
     
  9. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    Using commercial h2 gas sensor how to develope circuit what are the things we need
     
  10. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,214
    2,695
    Jan 21, 2010
    At least triple posted actually. (I hate it when I answer a duplicated post only to find I have simple repeated someone else -- what a waste of time and effort. And then I have to clean up the mess as well.)
     
  11. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    Initially am decide to develope a circuit using an already existing Sensor.. After that to take a step to develope the sensor..
     
  12. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,214
    2,695
    Jan 21, 2010
    Aaagh! quadruple!
     
  13. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    Don't mistake me.. Am didn't knw about the various section.. am wrongly think need to post in all sections like circuit help, forum , etc.,, Hereafter am not continue this one.. sorry
     
  14. Harald Kapp

    Harald Kapp Moderator Moderator

    9,398
    1,920
    Nov 17, 2011
    Look in the datasheet of the existing sensor to find an application circuit.
    As to "how to build your own sensor" I'm at a loss.
     
  15. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,214
    2,695
    Jan 21, 2010
    This is the only one you've got now.

    edit: And now you're sending me private messages as well soliciting help. Are you trying to get banned?

    Anyone else been spammed by this character?
     
    Last edited: Aug 9, 2012
  16. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    Sorry..

    Reply me apologize me

    can u give me the attachment of various H2 sensor
     
    Last edited by a moderator: Aug 10, 2012
  17. Harald Kapp

    Harald Kapp Moderator Moderator

    9,398
    1,920
    Nov 17, 2011
    Google: hydrogen sensor
     
  18. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    Hai Friends,

    We can sense H2 gas by two methods...

    1. Calorimetric Detection - Gas concentration Vs. Temperature Rise ( Produced by the heat reaction on a catalytic)

    Note : Its should be independent of coverage area for better response

    2. Conductivity Detection - Gas concentration Vs. Change in electical conductivity ( Reaction of gas on the solid surface)

    LEL of H2 is 4% .. so we cutoff the system before its reach that limit.. so 0- 80% LEL enough for us..

    Step :

    First purchase H2 sensor and make circuit for our own..

    Help :

    What are the h2 gas sensor suit for our requirement?

    Give an idea to create circuit..

    Thank You
     
  19. davenn

    davenn Moderator

    13,347
    1,774
    Sep 5, 2009
    have you done as suggested and googled hydrogen sensor as yet ??

    Dave
     
  20. rdevendrakumar1989

    rdevendrakumar1989

    29
    0
    Aug 9, 2012
    ya am googled and got more details... But till now there is no idea for circuit... If any one have sample circuit...
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-