Gas & Smoke Detection using Gas Sensor with Arduino R3 (Circuit Diagram & Code)

Gas & Smoke Detection using Gas Sensor with Arduino R3 (Circuit Diagram & Code) 

Introduction:

                       As the industry becomes greater day by day we can see huge working station where hundreds of working work their lives might get in danger just because of little gas leakage or due to smoke. Gas and Smoke Detection is a very important and crucial technique in today’s era which might be helpful to reduce such kind of issues in our working station as well as in our homes.

Description:

                      There are many kinds of techniques we can use for smoke and gas detection for an instant, Digital image processing can be an option to detect the Smoke and gas using Camera sensor (here is just giving the idea not the method how we detect it to form images for this you can search any research paper) other option can be used using Hardware such as Gas Sensor which highly used in industry, educational and other institutions for detection and prevention of any loss due to Smoke and Gas Leakages. How to actually do that experiment? So here is how we do that we use Gas & Some Sensor use with Arduino Micro Controller to achieve our purpose. If we talk about the Gas Sensor it output the Voltages Depending on the presence of Gas in the Air it will output the High voltage if the intensity of Gas is grater, low voltage otherwise.

Different Types of Gas Sensors:

·         Metal Oxide-based gas Sensor.

·         Optical gas Sensor.

·         Electrochemical gas Sensor.

·         Capacitance-based gas Sensor.

·         Calorimetric gas Sensor.

·         Acoustic based gas Sensor.

Gas Sensor Construction

Of all the above-listed types, the most commonly used gas sensor is the Metal oxide semiconductor-based gas sensor. All Gas sensors will consist of a sensing element that comprises of the following parts.

1. Gas sensing layer
2. Heater Coil
3. Electrode line
4. Tubular ceramic
5. Electrode

 Circuit Diagram:

Code:

int reading=0;

void setup()

{

  Serial.begin(9600);

}

void loop()

{

  reading=analogRead(A0);

  Serial.println(reading);

  delay(500);

}

The outPut of the Sensor: