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 2 gas sensor is shown as fig.
Please use simple electrocircuit convert change of conductivity to correspond output.
Please note the best preheat time of the sensor is above 24 hours.
Where to use mq 6 gas sensor.
The heater provides necessary work conditions for work of sensitive components.
Keeping this in mind in today s post i have worked on mq 2 gas sensor fc 22 powered and interfaced with arduino uno.
The mq 6 gas sensor can detect or measure gases like lpg and butane.
The gas the bigger the output voltage of the sig pin.
The mq 2 gas sensor can detect or measure gasses like lpg alcohol propane hydrogen co and even methane.
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.
Many a times disastrous accidents take place due to leakage of these cylinders in these situations we must administer proper care and safety.
300ppm 5000ppm h2 100ppm 2000ppm alcohol d.
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.
Structure and configuration basic measuring circuit structure and configuration of mq 2 gas sensor is shown as fig.
When the target combustible gas exist the sensor s conductivity is more higher along with the gas concentration rising.
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.
There are lpg cylinders which are used as a fuel source for the gas stove.
Sensitivity can be regulated by rotating the potentiometer.
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.
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.
For detail information about the mq 2 sensor please refer the data sheet provided in resources section.
Structure and configuration of mq 8 gas sensor is shown as fig.
