High Sensitive
LPG Sensor with Gas Leakage Alert Buzzer
This LPG Gas Sensor (MQ6), ideal sensor for use to detect
the presence of a dangerous LPG leak in your Home, car or in a service station,
storage tank environment. This unit can be easily incorporated into an alarm
unit, to sound an alarm or give a visual indication of the Combustible Gas /
LPG concentration. The sensor has excellent sensitivity combined with a quick
repsonse time. The sensor can also sense iso-butane, propane, LNG and cigarette
smoke. This LPG Gas Sensor can be used to make wireless Gas leak detector in
home security system
This project is High Sensitivity to LPG, iso-butane,
propane. This also can sense to alcohol and smoke, but with poor sensitivity.
This project is designed to detect the LPG from 100parts per million (PPM) to
10,000 PPM. Whenever LPG is detected, the sensor produces the output voltage,
which is depended on the amount of gas leakage. This voltage drives the
transistor into saturation region. A buzzer is connected to produce audible
alert signal.
This project uses regulated 5V, 750mA
power supply for charging the battery. 7805 three terminal voltage regulator is
used for voltage regulation. Bridge type full wave rectifier is used to rectify
the ac out put of secondary of 230/18V step down transformer. Read more
