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.
Mq 2 gas sensor datasheet.
Please use simple electrocircuit convert change of conductivity to correspond output.
There are lpg cylinders which are used as a fuel source for the gas stove.
For the detailed information about the mq 2 sensor please refer to the datasheet.
300ppm 5000ppm h2 100ppm 2000ppm alcohol d.
Sensitivity can be adjusted by rotating the potentiometer.
Where to use mq 6 gas sensor.
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.
Mq 2 semiconductor sensor for combustible gas sensitive material of mq 2 gas sensor is sno 2 which with lower conductivity in clean air.
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.
Keeping this in mind in today s post i have worked on mq 2 gas sensor fc 22 powered and interfaced with arduino uno.
Many a times disastrous accidents take place due to leakage of these cylinders in these situations we must administer proper care and safety.
Structure and configuration of mq 8 gas sensor is shown as fig.
Please note the best preheat time of the sensor is above 24 hours.
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.
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.
Sensitivity can be regulated by rotating the potentiometer.
Mq 2 mq 5 aq 2 mq 306a aq 3.
The mq 2 gas sensor can detect or measure gasses like lpg alcohol propane hydrogen co and even methane.
Structure and configuration basic measuring circuit structure and configuration of mq 2 gas sensor is shown as fig.
The heater provides necessary work conditions for work of sensitive components.
The mq 6 gas sensor can detect or measure gases like lpg and butane.
