论文部分内容阅读
三电位测深是由三种简单的测深装置组合而得的直流电阻率测深法。它不仅能探测水平层状电性层的垂向分布、埋深与厚度,而且更适于探测非水平层状的近似球体的等轴状或其它不规则形状的电性体。所谓三电位法,实质是在每个测点上同时观测对称、偶极、交叉三种装置的电阻率。它的布极方式通常采用温纳排列,即相邻电极间距相等(如图1所示)。野外实测时,只需一次布极,通过一个转换开关来改变供电极和测量极的相对位置,便可得到三种装置的电极排列方式。
Three-level sounding is a combination of three simple sounding device DC resistivity sounding. It not only can detect the vertical distribution, depth and thickness of the horizontal layered electrical layer, but also is suitable for detecting the equiaxed or other irregularly shaped electrical bodies of the non-horizontal layered approximate sphere. The so-called three-potential method, in essence, at each measuring point at the same time observe the symmetry, dipole, cross-resistivity of three devices. It’s cloth way is usually arranged in Wien, that is adjacent to the electrode spacing is equal (Figure 1). Field measurements, only a cloth pole, through a changeover switch to change the relative position of the electrode and the measuring pole, you can get the electrode arrangement of three devices.