The development and test research of a multichannel synchronous transient electromagnetic receiver

Lin, Fanqiang; Wang, Xuben; Chen, Kecheng; Hu, Depan; Gao, Song; Zou, Xue; Zeng, Cai

As a result of the drastic reduction in shallow mineral resources, the exploitable potential and reserves of proven mines are insufficient, and the mineral resources in deep ground need to be more explored in a more refined way. There are some disadvantages of the existing instruments, such as few channels and slow sampling rate. Therefore, a multiparameter transient electromagnetic instrument with synchronous receiving has been developed and tested. The instrument is composed of two controllers – embedded controller and programmable logic controller – which can provide a diversified information combination for follow-up information processing. Under the grounding electrode source emission mode, the real-time synchronous transient electromagnetic acquisition system of six channels is achieved with a sampling rate of 128 000 samples per second (SPS). The data acquired by the six channels is recorded in the full-time range of the time domain. Furthermore, experiments were carried out in the laboratory, open areas, and actual mine. Through data analysis, the measured data curves of the mining area are highly consistent with the existing geochemical exploration curves and geological profile.

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Lin, Fanqiang / Wang, Xuben / Chen, Kecheng / et al: The development and test research of a multichannel synchronous transient electromagnetic receiver. 2018. Copernicus Publications.

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