Difference between revisions of "Matrix - MQ-2 Gas Sensor"

From FriendlyELEC WiKi
Jump to: navigation, search
(Introduction)
(Basic Device Operation)
Line 24: Line 24:
  
 
==Basic Device Operation==
 
==Basic Device Operation==
* MQ-2_Gas_Sensor模块的主要器件是一个具有快速响应和恢复特性的MQ-2气体传感器,传感器所使用的气敏材料是在清洁空气中电导率较低的二氧化锡(SnO2),当传感器所处环境中存在可燃气体时,
+
* The MQ-2_Gas_Sensor module mainly consists of a MQ-2 gas sensor which is stable and responsive. The sensor uses SnO2 as its gas sensitive material. When its surrounding environment has combustible gases its conductivity change is positively proportional to the gas concentration and this change will be converted to analog output signals. Its sensitivity can be adjusted via the potentiometer.
传感器的电导率随空气中可燃气体浓度的增加而增大,传感器将电导率的变化转换为与该气体浓度相对应的模拟信号输出,灵敏度可以通过电位计进行调节。
+
  
 
==Download Matrix Source Code==
 
==Download Matrix Source Code==

Revision as of 08:07, 24 February 2016

查看中文

1 Introduction

MQ-2 烟雾传感器
  • The Matrix-MQ-2_Gas_Sensor uses the MQ-2 gas sensor which is sensitive to LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke and etc and is used to detect multiple gas leakage. This makes it suitable in various applications of gas leak detection.
  • The output voltage of the module is positively proportional to the gas concentration.

2 Features

  • Standard 3 Pin Interface
  • PCB Dimension(mm): 24 x 32

MQ-2 Gas Sensor.PCB

  • Pin Description:
Pin Description
S GPIO
V Supply Voltage 5V
G Ground

3 Basic Device Operation

  • The MQ-2_Gas_Sensor module mainly consists of a MQ-2 gas sensor which is stable and responsive. The sensor uses SnO2 as its gas sensitive material. When its surrounding environment has combustible gases its conductivity change is positively proportional to the gas concentration and this change will be converted to analog output signals. Its sensitivity can be adjusted via the potentiometer.

4 Download Matrix Source Code

5 Update Log

5.1 Feb-24-2016

  • Added Sections 1, 2, 3 and 4