| 交叉偶极声波测井的数据采集与处理电路设计 |
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| 引用本文： | 张全文,师奕兵,张伟,刘西恩.交叉偶极声波测井的数据采集与处理电路设计[J].测控技术,2009,28(7). |
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| 作者姓名： | 张全文 师奕兵 张伟 刘西恩 |
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| 作者单位： | 1. 电子科技大学,自动化工程学院,四川,成都,610054
2. 中国油田服务股份有限公司技术中心,北京,101149 |
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| 摘 要： | 针对多通道声波数据采集时序控制复杂的特点,设计了一种基于DSP和FPGA的声波数据采集与处理电路.设计中在FPGA内部构造4个异步FIFO作为模数转换器和DSP之间的数据缓存器,并由DSP实现LZW数据压缩算法等数据处理,电路协调一致地完成8路信号的采集与处理操作.实践表明,该电路能够稳定可靠地工作,达到了井下声波信号采集的要求.
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| 关 键 词： | 偶极声波测井 数据采集 |
Design of Data Acquisition and Processing Circuit of Cross-Dipole Acoustic Logging |
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| ZHANG Quan-wen,SHI Yi-bing,ZHANG Wei,LIU Xi-en.Design of Data Acquisition and Processing Circuit of Cross-Dipole Acoustic Logging[J].Measurement & Control Technology,2009,28(7). |
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| Authors: | ZHANG Quan-wen SHI Yi-bing ZHANG Wei LIU Xi-en |
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| Affiliation: | 1.School of Automation Engineering;UESTC;Chengdu 610054;China;2.China Oil-Field Services Co.;Ltd;Beijing 101149;China |
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| Abstract: | For the characteristics of multi-channel acoustic data acquisition,which is complex in timing control, the design of an acoustic data acquisition and processing circuit based on DSP and FPGA is presented.In this circuit,four asynchronous FIFO are realized by using FPGA and used as a data BUFFER of ADC and DSP.In addition,DSP is designed to realize data processing such as the algorithm of LZW data compression, eight-channel's signal acquisition and processing can be finished coordinately through the circuit.... |
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| Keywords: | FIFO LZW dipole acoustic logging FIFO data acquisition LZW |
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