1 configuration a or b sensor composed by micro al2o3 ceramic tube tin dioxide sno2 sensitive layer measuring electrode and heater are fixed into a crust made by plastic and stainless steel net.
Mq 2 gas sensor datasheet.
Structure and configuration of mq 8 gas sensor is shown as fig.
Sensitivity can be adjusted by rotating the potentiometer.
Many a times disastrous accidents take place due to leakage of these cylinders in these situations we must administer proper care and safety.
Mq 2 semiconductor sensor for combustible gas sensitive material of mq 2 gas sensor is sno 2 which with lower conductivity in clean air.
Keeping this in mind in today s post i have worked on mq 2 gas sensor fc 22 powered and interfaced with arduino uno.
Sensitivity can be regulated by rotating the potentiometer.
Where to use mq 6 gas sensor.
The mq 6 gas sensor can detect or measure gases like lpg and butane.
1 configuration a or b sensor composed by micro al2o3 ceramic tube tin dioxide sno2 sensitive layer measuring electrode and heater are fixed into a parts materials 1 gas sensing.
The output voltage from the gas sensor increases when the concentration of gas increases.
For the detailed information about the mq 2 sensor please refer to the datasheet.
The module version of this sensor comes with a digital pin which makes this sensor to operate even without a microcontroller and that comes in handy when you are only trying to detect one particular gas.
Please use simple electrocircuit convert change of conductivity to correspond output.
The heater provides necessary work conditions for work of sensitive components.
For detail information about the mq 2 sensor please refer the data sheet provided in resources section.
The mq 2 gas sensor can detect or measure gasses like lpg alcohol propane hydrogen co and even methane.
Mq 2 mq 5 aq 2 mq 306a aq 3.
1 configuration a or b sensor composed by micro al2o3 ceramic tube tin dioxide sno2 sensitive layer measuring electrode and heater are fixed into a parts materials 1 gas sensing layer sno2 2 electrode au 3 electrode line pt 4 heater coil ni cr alloy.
Structure and configuration of mq 2 gas sensor is shown as fig.
The gas the bigger the output voltage of the sig pin.
The mq 6 sensor module comes with a digital pin which makes this sensor to operate even without a microcontroller and that comes in handy when you are only trying to detect one particular gas.
Structure and configuration basic measuring circuit structure and configuration of mq 2 gas sensor is shown as fig.
300ppm 5000ppm h2 100ppm 2000ppm alcohol d.