| 基于LabVIEW的航空瞬变电磁数据采集系统 |
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| 引用本文： | 曹展宏,李军峰,刘俊杰,吴珊,刘磊. 基于LabVIEW的航空瞬变电磁数据采集系统[J]. 电子测量技术, 2019, 42(8): 93-97 |
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| 作者姓名： | 曹展宏 李军峰 刘俊杰 吴珊 刘磊 |
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| 作者单位： | 中国地质科学院地球物理地球化学勘查研究所 廊坊065000;北华航天工业学院 廊坊065000;中国地质科学院地球物理地球化学勘查研究所 廊坊065000;国土资源部地球物理电磁法探测技术重点实验室 廊坊065000 |
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| 基金项目： | 国家重点研发计划重点专项(2017YFC0601900）、基本科研业务费专项(JYYWF20180103)资助 |
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| 摘 要： | 根据航空瞬变电磁法的原理及其信号特点，按照长时间连续采集和存储的要求，设计了基于LabVIEW的航空瞬变电磁数据采集系统。系统硬件平台以NI PXIe-4492动态信号采集卡为核心，搭配NI PXIe-6674T和NI PXI-6682H等辅助板卡进行搭建；软件部分采用LabVIEW编写，利用生产者/消费者模式，结合用户事件处理循环和队列消息处理器，实现了数据连续采集、存储、实时处理及显示的功能，并解决了发射和接收时钟不同步的问题。最后实验表明，该系统能够长时间稳定采集，并且各项性能满足设计要求。
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| 关 键 词： | 瞬变电磁法 数据采集 LabVIEW 时钟同步 |
Airborne transient electromagnetic data acquisition system based on LabVIEW |
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| Cao Zhanhong,Li Junfeng,Liu Junjie,Wu Shan,Liu Lei. Airborne transient electromagnetic data acquisition system based on LabVIEW[J]. Electronic Measurement Technology, 2019, 42(8): 93-97 |
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| Authors: | Cao Zhanhong Li Junfeng Liu Junjie Wu Shan Liu Lei |
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| Affiliation: | Institute of Geophysical and Geochemical Exploration CAGS, Langfang 065000, China; North China Institute of Aerospace Engineering, Langfang 065000, China;;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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| 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. |
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| Keywords: | transient electromagnetic method data acquisition labview clock synchronization |
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