
%0 Journal Article
%A Chen, Kai 
%A Deng, Ming 
%A Huang, Jiang-jie 
%A Cheng, Tian 
%T The Borehole-Ground Controlled Source Electromagnetic Signal Recorder
%J ASEG Extended Abstracts
%D 2010/09/01
%V 2010
%N 1
%P 1-5
%K 
%R https://doi.org/10.1071/ASEG2010AB081
%U https://www.publish.csiro.au/paper/ASEG2010AB081 
%X As a high-tech method of electrical prospecting, borehole-ground controlled source electromagnetic imaging is aimed to enhance the detection depth and increase resolution appropriately. It requires the signal recording instrument to be a ground and underground (pit, wells) quasi-three-dimensional receiver. To record signals of the natural field and controlled source from 0.1Hz to 20KHz in N * 10nV - N * 100mV amplitude range, we used a series of new technology, such as ARM + LINUX embedded, low-noise high-precision, GPS synchronization and low drift, low-power, NET, high-capacity storage, to develop a borehole-ground controlled source electromagnetic recorder with large dynamic range of broadband. Field survey data indicate that this signal recorder can work in a normal and stable manner, and all expected technical indexes have been largely reached. 
