SQUARE WAVE COHERENT METHOD FOR EXTRACTING IP EFFECT
来源期刊:中国有色金属学报(英文版)1995年第2期
论文作者:He Jishan Wang Shaowu Tang Jingtian
文章页码:1 - 6
Key words:dual-frequency IP method ;square wave coherent method ;Fourier coherent methed; EM effect.
Abstract: Using special appearance of EM and IP effects in measured dual-frequency wave form, a square wave coherent method to extract IP effect directly and simutaneously was proposed. The results of numerical calculation and experiments showed that EM effect can be eliminated well in field measurement. The instrument made on this method worked well in waterbath experiments