Design of intrinsically safe intelligent water-level monitor used in coal mine

In order to master the dynamic change law of groundwater, understand the groundwater level condition and avoid the mine flooding accidents, an intrinsically safe intelligent water-level monitor used in mine is presented in this paper. The monitor can display and store the date in real-time. The groundwater level in certain time span is analyzed by computer analysis software to master the status of water in coal mine and prevent the mine from flooding disaster in time. Experiment results show that the water-level monitor has the characters of low cost, low power consumption, convenient installment and use, exact measurement and intuitional observation etc.