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gas sensor

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Senthil Babu
Senthil Babu's picture
Last seen: 7 months 2 weeks ago
Joined: 05/09/2018 - 22:43
gas sensor

hi I have put gas sensor in a vacuum chamber and tried to study its behavior
I was expecting the sensor to read low value but as the vacuum goes down the sensor shoots up to the maximum it reads max ADC value 1023
I tried with different MQ gas sensors also but all the sensors show the same behavior
when gas is not present the sensors should read low but it is reading max Why ?
can any one help out

Hari Prasaath K
Hari Prasaath K's picture
Last seen: 2 months 2 weeks ago
Joined: 20/01/2015 - 23:56
Gas Sensor

What type of Gas you have identify and you have to choose the respective gas sensor type.