物探与化探
物探與化探
물탐여화탐
GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2013年
5期
830-833,838
,共5页
卓贤军%底青云%张佳炜
卓賢軍%底青雲%張佳煒
탁현군%저청운%장가위
无线电磁法%CSAMT法%人工源电磁探测%谐波%视电阻率%相位
無線電磁法%CSAMT法%人工源電磁探測%諧波%視電阻率%相位
무선전자법%CSAMT법%인공원전자탐측%해파%시전조솔%상위
Wireless Electro-Magnetic Method(WEM)%Control Source AMT(CSAMT)%artificial source electromagnetic survey%har-monic%apparent resistivity%phase
无线电磁法(WEM)是20世纪90年代发展起来的一种新的人工源电磁探测技术。对WEM法中发射电磁信号的谐波产生进行了分析,并根据实测资料,利用发射信号谐波计算得到的测点视电阻率和相位值与基波信号计算结果进行对比,认为在WEM法中可以有效利用谐波,减少发射频率点,提高工作效率,或加密频率点,提高资料的解释精度。由于在人工源电磁法中,发射的电磁信号中普遍存在谐波信号,因此,此技术也可以应用于其他人工电磁法中。
無線電磁法(WEM)是20世紀90年代髮展起來的一種新的人工源電磁探測技術。對WEM法中髮射電磁信號的諧波產生進行瞭分析,併根據實測資料,利用髮射信號諧波計算得到的測點視電阻率和相位值與基波信號計算結果進行對比,認為在WEM法中可以有效利用諧波,減少髮射頻率點,提高工作效率,或加密頻率點,提高資料的解釋精度。由于在人工源電磁法中,髮射的電磁信號中普遍存在諧波信號,因此,此技術也可以應用于其他人工電磁法中。
무선전자법(WEM)시20세기90년대발전기래적일충신적인공원전자탐측기술。대WEM법중발사전자신호적해파산생진행료분석,병근거실측자료,이용발사신호해파계산득도적측점시전조솔화상위치여기파신호계산결과진행대비,인위재WEM법중가이유효이용해파,감소발사빈솔점,제고공작효솔,혹가밀빈솔점,제고자료적해석정도。유우재인공원전자법중,발사적전자신호중보편존재해파신호,인차,차기술야가이응용우기타인공전자법중。
Wireless Electro-Magnetic Method(WEM)is a new artificial source electromagnetic sounding technique developed in the 1990s.In this paper,the origin of the harmonic of the transmitting electromagnetic signals in WEMwas analyzed,and the apparent re-sistivity and phase were calculated by using transmitting signals and its harmonic with the data of experimentation.Based on a compari-son of the two results,the authors considered that this technique is an effective method by using harmonic in the artificial source elec-tromagnetic methods.It can improve work efficiency by decreasing transmitting frequency numbers or improve accuracy of interpretation by increasing frequency numbers of the electromagnetic response curves.This technique can be used in other artificial source electro-magnetic methods because the harmonic always coexists with the transmitting electromagnetic signals in the source electromagnetic method.