Patent ID: 8650948

Claim:
A seepage meter capable of sequential measuring of groundwater discharge and recharge comprising: a chamber 10 installed in stream sediment and filled inside thereof with water; a device for measuring groundwater recharge 20 that is filled with water inside thereof and installed fixed on the bottom surface of stream to measure a water level drop h 1 by flowing the water inside thereof to the chamber 10 in case of losing stream, wherein the device for measuring groundwater recharge 20 is connected and communicated with the chamber 10 ; a device for measuring groundwater discharge 30 that is installed fixed on the bottom surface of stream to measure a water level change h 2 by inflowing water from the chamber 10 in case of gaining stream, wherein the device 30 is connected and communicated with the chamber 10 ; a first pressure sensor 71 installed above an inner water surface of the device for measuring groundwater recharge 20 to measure groundwater recharge through a change in air pressure by the water level drop h 1 ; and a second pressure sensor 72 installed on a bottom surface of the device for measuring groundwater discharge 30 to measure groundwater discharge through a change in water pressure by the water level change h 2 .