what are the advantages of a u-tube manometer than a piezometer
A piezometer is a tool used to measure the static liquid pressure in a system. It also is used to measure pore - water pressure at multiple zones in a borehole.
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A piezometer is a small diameter water well used to measure the hydraulic head of groundwater in aquifers. Similarly, it may also be a tube or manometer used to measure the pressure of a fluid at a specific location in a column. Piezometers should ideally have a very short screen and filter zone, so that they can represent the hydraulic head at a point in the aquifer. If the filter zone is located at a specific isolated depth, the piezometer is defined punctual, or, if the piezometer has a filter on all its length, is defined windowed. The windowed piezometer is cheaper than the punctual one, but cannot give information on vertical flows. The main problem with the piezometers is the time-lag between the variation of piezometric level in the aquifer and the respective variation in the piezometer. This time-lag is related to the piezometer (type, shape, etc.) and the soil. Modern piezometers with little time-lag are the piezometric cells, where the pressure on a membrane is measured by the pressure of gas (pneumatic piezometric cells), by vibrating thread extensimeters or by electrical extensimeters (strain gauges piezometers). Source: http://www.answers.com/piezometers?gwp=11&ver=2.3.0.609&method=3
Piezometers, flow meters, and water level gauges are utilized to determine water flows, water levels, and head differences in several times.
No limitations
what are the limitations to a barometer
The ISBN of Limitations is 0312426453.
Limitations was created in 2006.
One of the limitations is the ratifaction of laws.
There are no limitations.
limitations of logic gates