Friday, November 22, 2013
Hydraulic Measurement Tools
Hydraulics is an aspect of applied science and engineering that mainly deals with the mechanical properties of liquids. The liquid used in hydraulic systems is incompressible and mostly contains oil and water. This is the fluid that is used to transmit force. The hydraulic tools used for measuring hydraulic properties utilize the liquid as the powering medium. Hydraulics are widely used in the aircraft and automotive industries. There are several tools used to measure different mechanical properties of the hydraulic fluids.
Hydraulic Piezometer
A hydraulic piezometer is designed to measure pore water pressures in fully or partially saturated soil and rock. The hydraulic piezometer has a tip which consists of a porous ceramic filter vessel. Twin hydraulic tubes to connect each of the tips to the remote reading terminal where the pressure will be read by use of a bourdon gauge. The instrument is made with non-corrosive materials. The hydraulic piezometer has the capability of measuring pressure change of up to 2000kPa.
Guelph Permeameter
The Guelph Permeameter is a tool kit used to measure in-situ hydraulic conductivity. Hydraulic conductivity is the ability of a medium to transmit water. This tool provides accurate measurements of soil conductivity, soil sorptivity and matrix flux potential. One of the advantages of using the Guelph Permeameter is that it can be operated, assembled and transported with ease. Time taken to acquire soil hydraulic measurements depends on the soil type at a range of 15-75 centimeters below the soil surface. This kit consists of several other hydraulic measurement tools apart from the Permeameter. These tools include the preparation and clean-up tools, vacuum test hand pump, collapsible water container, a field tripod and a well auger.
Hydraulic Profiling tool
The hydraulic profiling tool is used to evaluate the hydraulic properties of unconsolidated materials. It locates and defines the pathways used by contaminants as they move in the subsurface. It identifies target zones of remedial material, measures static water conditions across a site and selects well screen intervals. Incorporated into this tool is a sensitive transducer whose main role is to measure the response of pressure of the soil injection of water.
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