The MQ4
methane gas sensor is extremely used for detecting gas leakage at home
or in industries like Methane (CH4) & CNG Gas. This gas sensor is highly
responsive in very little time, so based on the sensitivity requirements; it
can be adjusted through a potentiometer. This is an analog output sensor, used like a
CNG (compressed natural gas) sensor within the series of MQ sensors.
MQ4
Gas sensor is a Metal Oxide Semiconductor
(MOS) type Gas Sensor mainly used to detect the Methane (CNG) gas concentration
in the air either at home or in industry. This sensor contains a sensing
element, mainly aluminum-oxide based ceramic, coated with Tin dioxide, enclosed
in a stainless-steel mesh. Whenever gas comes into contact with the sensing
element, the resistivity of the element changes. The change is then measured to
get the concentration of the gases present. Its sensing range of 300-10000 PPM
is suitable for gas leak detection. The combustion of Methane is
highly exothermal means it will release a vast amount of heat if ignited which
when used in a controlled way is beneficial but if an accident occurs it will
be devastating.
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