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.
Sensitivity can be adjusted 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.
For the detailed information about the mq 2 sensor please refer to the datasheet.
Many a times disastrous accidents take place due to leakage of these cylinders in these situations we must administer proper care and safety.
The heater provides necessary work conditions for work of sensitive components.
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.
Mq 2 mq 5 aq 2 mq 306a aq 3.
Structure and configuration basic measuring circuit structure and configuration of mq 2 gas sensor is shown as fig.
Structure and configuration of mq 2 gas sensor is shown as fig.
Keeping this in mind in today s post i have worked on mq 2 gas sensor fc 22 powered and interfaced with arduino uno.
There are lpg cylinders which are used as a fuel source for the gas stove.
Structure and configuration of mq 8 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.
Please note the best preheat time of the sensor is above 24 hours.
Please use simple electrocircuit convert change of conductivity to correspond output.
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 mq 6 gas sensor can detect or measure gases like lpg and butane.
For detail information about the mq 2 sensor please refer the data sheet provided in resources section.
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 output voltage from the gas sensor increases when the concentration of gas increases.
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.
