In clean air, I calculated the value of R0 by using MiCS quick evaluation board.
Formula applied :(ADC/(RESOLUTION - ADC)) * 51820---for NO2
and (ADC/(ADC-RESOLUTION))*100820 -- for CO
and in polluted air I applied same formula and gave it a name Rs
Then took ratio of Rs/R0 which is less than one.
So I had a slope and its constant meand y = m*x + c
But i do not know how to derive equation to find out the value of ppm from Rs/0
I am confused with MiCS 4514 sensor. What I had done is :
using MiCS quick start evaluation board, measured ADC value
calculated Vout and from that calculated R0.
Rs/R0 concentration gives me high value, which is not possible, My data is as follows
clean air file is used for the purpose of R0 value
https://drive.google.com/file/d/0B8sF8a6FHoseWjhWOHRoYzIxakk/view?usp=sharing
and Polluted file is used to calculate the actual pollution
https://drive.google.com/file/d/0B8sF8a6FHoseR1BnclhCUHdibEU/view?usp=sharing
I am confused. Please help me
I am confused with MiCS 4514 sensor. What I had done is :
and Polluted file is used to calculate the actual pollution
https://drive.google.com/file/d/0B8sF8a6FHoseR1BnclhCUHdibEU/view?usp=sharing
I am confused. Please help me
In MQ135 sensor's datasheet , which line on the curve is used to find out the concentration of benzene?
Hello
In MiCS 2614 or in any gas sensor. what should be the value of R0... Because in datasheet they mentioned that value is measured in ambient condition. Any default value for that??
So what is the conditioning period for testing in it??? It is two days.. What does it mean??
IN MiCS 2614 , sensitivity factor is defined by "Rs at 100 ppb of O3 divided by Rs at 50 ppb of O3". From where you measured Rs at 100 ppb or 50 ppb.???
I think MQ131 need 24 hours preheating time.Because of preheating time it will be costly. and for MiCS 6814 how do you calculate or measured other values of gases?? Because sensor's data sheet it hard to understand