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最近,国内一些单位在物探中应用PC—1500袖珍计算机做了不少工作。在电测深方面文献[1]、[2]提供了电阻率测深及激发极化测深的方法和程序。本文给出了在PC—1500机上实现的电测深曲线T函数自动拟合反演解释方法和程序,供大家参考。一、理论基础众所周知,在水平层状大地表面上对称四极排列的视电阻率表达式为 p_s=r~2 intergral from n=0 to ∞ T_1(λ)J_1(λr)λdλ (1)式中r=AB/2,为对称四极排列的电极距;J_1(λr)是一阶贝塞尔函数;T_1(λ)为视电阻率转换函数(简称T函数),可由下列递推公式求得: Tn(λ)=pn,
Recently, some domestic units have done a lot of work in the field of geophysical applications using the PC-1500 pocket computer. References [1] and [2] provide the methods and procedures for resistivity sounding and induced polarization sounding in electrical sounding. In this paper, the method and program of T-function automatic fitting inversion interpretation of electrical sounding curve realized on PC-1500 machine are given for your reference. First, the theoretical basis As we all know, the symmetrical quadrupole array on the horizontal surface of the apparent resistivity expression p_s = r ~ 2 intergral from n = 0 to ∞ T_1 (λ) J_1 (λr) λdλ (1) r = AB / 2, is the electrode distance of symmetrical quadrupole arrangement; J_1 (λr) is a first order Bessel function; T_1 (λ) is the apparent resistivity conversion function : Tn (λ) = pn,