物探化探计算技术Issue(1)：45-50,6.DOI:10.3969/j.issn.1001-1749.2015.01.08
瞬变电磁中两种发射源的响应特征研究
Study on TEM response characteristics of two kinds of transmitter sources
张扬 1雷宛 2杨武 1刘家福 1苏鹏1
作者信息
- 1. 成都理工大学 地球物理学院，成都 610059
- 2. 成都理工大学 环境与土木工程学院，成都 610059
- 折叠
摘要
Abstract
Large-loop source as a quick and efficient observation way of transient electromagnetic,it has the advantage of laying a wireframe,outside and inside the box being measured,high spatial sampling rate,high work efficiency and interpreta-tion accuracy,especially suitable for the area survey of high density and big depth.At the moment,there are two calculation ways for rectangular source.The first is using circular transmitter source instead of rectangular transmitter source;The second is using a horizontal dipole along the rectangular loop for numerical integration.This paper calculate the secondary field value within two transmitters loop,study the distribution characteristics of secondary field of two kinds source in the loop,proved that for the central loop device and large fixed source device.The method that using a circular transmitter wireframe instead of rectangular transmitter wireframe to calculate the apparent resistivity in the later period is effective,calculation the early appar-ent resistivity will introduce greater error and needs correction.关键词
大回线源/中心回线/圆形回线Key words
large-loop source/central-loop/circular loop分类
天文与地球科学引用本文复制引用
张扬,雷宛,杨武,刘家福,苏鹏..瞬变电磁中两种发射源的响应特征研究[J].物探化探计算技术,2015,(1):45-50,6.
