APPARATUS FOR MEASURING SAMPLES

摘要

The present invention relates to a sample measuring apparatus which collects soil sample from an area of which underground water is investigated and simultaneously measures hydraulic conductivity and electrical resistivity for soil sample under indoor environment. The sample measuring apparatus includes a supply reservoir mounted on a first stand and discharging stored water which is supplied from the outer through a lower supply hose; a sample holder mounted on a second stand and having a space to be filled with samples, a lower portion of the sample holder being connected to a distal end of the supply hose so that the sample holder is supplied by the water from the reservoir to discharge the water through an upper discharge hose; a discharge reservoir fixed to the sample holder and having a lower portion connected to a distal end of the discharge hose so that the discharge reservoir is supplied by the water from the sample holder and discharges the stored water through a drain pipe; and a drain reservoir storing the water discharged from the discharge reservoir. The inner surface of the sample holder is provided with a plurality of potential electrodes and current electrodes to put a current to the current electrodes by the measuring apparatus and to measure a potential by the potential electrode, thereby measuring electrical properties of the sample. Also, the apparatus measures the hydraulic conductivity of the sample by use of a difference between water heads of the supply reservoir and the discharge reservoir.