Resistivity


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Related to Resistivity: conductivity, resistivity method

resistivity

[‚rē‚zis′tiv·əd·ē]
(electricity)

Resistivity

 

(or specific resistance), a physical quantity equal to the electrical resistance of a cylindrical conductor of unit length and unit cross-sectional area. Designated p, resistivity is usually expressed in ohm-centimeters or ohm-meters.

electrical resistivity, specific resistance

The resistance, in ohms, of an electric conductor of unit cross-sectional area and unit length.
References in periodicals archive ?
The temperature control system Linkam THMSE 600 coupled with an Agilent 34970A data acquisition unit was used for electrical resistivity measurements of the GSS powder samples during the heating and the cooling.
Considering the earth as a uniform, homogeneous and isotropic half-space (from now on, all "uniform" structures will be considered as homogenous and isotropic), the potential field generated by the Wenner electrode array can be computed and this way to relate the soil resistivity to the electrode array geometry [9-11]:
These results concluded that resistivity of soil increases with increasing SPT (N) and angle ofinternal friction while it decreases with increasing moisture content and cohesion.
As shown in Figure 9, the volume resistivity of the sample increases with the increase of the injection pressure.
The present research effort is aimed at determining the geotechnical characteristics of the subsurface structures using both electrical resistivity and seismic refraction methods so as to determine its competence in siting engineering structures.
While the electrical conductivity is significantly increased, the resistivity decreases from 1.
The problems of reduced exchange capacity in aging cartridges are compounded by the fact that the standard resistivity monitors employed in many labs to notify users of changes in water quality are often unable to detect the subtle changes in resistivity caused by increasing concentrations of ionic contaminants.
Geoelectrical resistivity surveying has become an important and useful tool in hydrogeological studies, mineral prospecting and mining, as well as in environmental and engineering applications [Griffiths & al.
But electrical resistivity is more suitable procedure as it is effective for dense station spacing and spatial aliasing.
Studies have shown that the surface resistivity test is a promising alternative to the RCPT.