GROUNDWATER FLOW MEASUREMENT USING DIFFERENTIAL PRESSURE SENSOR AND METHOD

摘要

The present invention relates to a groundwater flow measurement device using a differential pressure sensor and a method thereof. The purpose of the present invention is to measure the flow rate of groundwater pumped from the underground or geothermal heat circulating water and measure the flow rate without damage due to foreign substances included in the groundwater and the geothermal heat circulating water while not using a driving unit. The groundwater flow measurement device using the differential pressure sensor according to the present invention comprises a flow measurement device body (10) mounted on a duct in which the groundwater or the geothermal heat circulating water flows; a differential pressure sensor (20) detecting differential pressure through pressure delivered from a high-pressure tube and a low-pressure tube; a flow sensor (30) sensing whether there is the groundwater inside the flow measurement device body; and a controller (40) calculating the flow rate based on a flow sensing value by the flow sensor and a detected value from the differential pressure sensor.