Differential pressure systems and methods for measuring hydraulic parameters across surface water-aquifer interfaces
US8825430B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 3, 2009 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Nov 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A90/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The systems and methods described herein related to measuring hydraulic parameters across a surface water-aquifer interface. In particular, the systems include a pressure differential sensor within a watertight housing. The pressure differential sensor has two inlets, one of which is connected to a piezometer located in an aquifer, and the other of which is connected to a surface water body. A solenoid valve allows the systems to switch between a first, measurement configuration and a second, calibration configuration. A pump and a conductivity-temperature sensor enable a third and fourth configuration for measuring the electrical conductivity and temperature of surface water and groundwater. The collected data is then locally stored or transmitted wirelessly. The low-power components and calibration capabilities of the systems allow for long-term deployment, on the order of six months or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.