| 摘要 |
This invention provides a piezometric device to measure ground water having a fluid container in which the piezometric element is immersed so that it is permanently saturated. Preferably, an opening above the level of the piezometric element allows fluid in a container to be retained and yet equalized with surrounding ground water to provide pressure readings. This avoids the device becoming unreliable should the water level fluctuate. A releasable seal may be placed over the opening into the container 2 to keep the fluid within the housing during transportation. <IMAGE> |
