Airborne transient electromagnetic data acquisition system based on LabVIEW

Home > Archive>Volume 42, Issue 8, 2019 >93-97

Airborne transient electromagnetic data acquisition system based on LabVIEW
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                        Cao ZhanhongCao Zhanhong
Institute of Geophysical and Geochemical Exploration CAGS, Langfang 065000, China; North China Institute of Aerospace Engineering, Langfang 065000, China;
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Li JunfengLi Junfeng
Institute of Geophysical and Geochemical Exploration CAGS, Langfang 065000, China;Key Laboratory of Geophysical EM Probing Technologies, Ministry of Land and Resources, Langfang 065000, China
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Liu JunjieLiu Junjie
Institute of Geophysical and Geochemical Exploration CAGS, Langfang 065000, China;Key Laboratory of Geophysical EM Probing Technologies, Ministry of Land and Resources, Langfang 065000, China
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Wu ShanWu Shan
Institute of Geophysical and Geochemical Exploration CAGS, Langfang 065000, China;Key Laboratory of Geophysical EM Probing Technologies, Ministry of Land and Resources, Langfang 065000, China
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Liu LeiLiu Lei
Institute of Geophysical and Geochemical Exploration CAGS, Langfang 065000, China;Key Laboratory of Geophysical EM Probing Technologies, Ministry of Land and Resources, Langfang 065000, China
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Clc Number:TP2；TN06
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Abstract:

According to the principle of aero-transient electromagnetic method and its signal characteristics, according to the requirements of long-time continuous acquisition and storage, an airborne transient electromagnetic data acquisition system based on LabVIEW is designed. System hardware platform with NI PXIe-4492 Dynamic signal acquisition card as the core, with Ni pxie-6674t and NI pxi-6682h and other auxiliary board to build; the software part uses LabVIEW to write, using producer/consumer mode, combined with user event processing loop and queue Message processor, realizes the function of data continuous collection, storage, real-time processing and display, and resolves the issue that the transmit and receive clocks are out of sync. Finally, the experiment shows that the system can be collected stably for a long time, and the performance satisfies the design requirements.

Key words:transient electromagnetic method; data acquisition; labview; clock synchronization

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Online: August 16,2021
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