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You are here: Home / Topics / gas sensor

gas sensor

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Electronics › Electronics › gas sensor

  • This topic has 1 reply, 2 voices, and was last updated 6 years, 6 months ago by ashish.
Viewing 2 posts - 1 through 2 (of 2 total)
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  • September 5, 2018 at 5:24 pm #4964
    luiz
    Participant

    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

    December 22, 2018 at 5:53 pm #14972
    ashish
    Participant

    gas sensor is electrochemical sensor, it measures concentration of a subject gas with a reference….it is not meant to measure volume of any gas…so gas sensor will obviously behave unexpectedly in vaccum

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