Maker Pro
Maker Pro

H2 gas sensor project

Harald Kapp

Moderator
Moderator
Nov 17, 2011
13,700
Joined
Nov 17, 2011
Messages
13,700
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.
 

rdevendrakumar1989

Aug 9, 2012
29
Joined
Aug 9, 2012
Messages
29
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
 

Harald Kapp

Moderator
Moderator
Nov 17, 2011
13,700
Joined
Nov 17, 2011
Messages
13,700
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?
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
Joined
Jan 21, 2010
Messages
25,510
So are you wanting to build a circuit to use an already existing sensor, or do you want to build a sensor?
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
Joined
Jan 21, 2010
Messages
25,510
Double post :(

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.)
 

rdevendrakumar1989

Aug 9, 2012
29
Joined
Aug 9, 2012
Messages
29
Initially am decide to develope a circuit using an already existing Sensor.. After that to take a step to develope the sensor..
 

rdevendrakumar1989

Aug 9, 2012
29
Joined
Aug 9, 2012
Messages
29
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
 

Harald Kapp

Moderator
Moderator
Nov 17, 2011
13,700
Joined
Nov 17, 2011
Messages
13,700
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.
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
Joined
Jan 21, 2010
Messages
25,510
Hereafter am not continue this one.. sorry

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:

rdevendrakumar1989

Aug 9, 2012
29
Joined
Aug 9, 2012
Messages
29
Sorry..

Reply me apologize me

can u give me the attachment of various H2 sensor
 
Last edited by a moderator:

rdevendrakumar1989

Aug 9, 2012
29
Joined
Aug 9, 2012
Messages
29
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
 

davenn

Moderator
Sep 5, 2009
14,254
Joined
Sep 5, 2009
Messages
14,254
have you done as suggested and googled hydrogen sensor as yet ??

Dave
 

rdevendrakumar1989

Aug 9, 2012
29
Joined
Aug 9, 2012
Messages
29
ya am googled and got more details... But till now there is no idea for circuit... If any one have sample circuit...
 
Top