Application of QM-N5 Air-sensitive Sensor in Mines

QM-N5 air-sensitive sensor is used in mines to check the gaseous concentration in mines.The information in the mine is collected by QM-N5 air-sensitive sensors and converted into digital signals by 555 timer;the random disturbance in the signal is removed by the temperature and humidity compensation circuit;the display and alarm are performed.A scheme of detecting the gaseous concentration in mines is proposed.The project is concise and reliable,and can detect the gaseous concentration in mines.