基于浮点放大技术的多通道数据采集系统

英文篇名：Research on Multi-channel Data Acquisition System Based on Floating Point Amplifier
中文刊名：计算机测量与控制
英文刊名：Computer Measurement & Control
作者：高德芝 ; 陈祖斌 ; 段建民
英文作者：Gao Dezhi1 ; Chen Zubin2 ; Duan Jianmin1 (1.Intelligent Measurement & control Laboratory ; Beijing University of Technology ; Beijing100022 ; 2.State Key Lab.of Geo-exploration Instrumentation ; Jilin University ; Changchun130061 ; China)
中文关键词：浮点放大 ; 数据采集 ; A/D转换器 ; 多通道切换
英文关键词：floating point amplification ; data acquisition ; A/D converter ; multi-channel converter
出版日期：2009-02-25
机构：北京工业大学智能测控研究室;吉林大学地球信息探测仪器教育部重点实验室;
年：2009
期：02
出版单位：计算机测量与控制

摘要

地质勘测是地下信息获取最有效的手段之一,而数据采集的质量好坏是直接影响勘探效果甚至导致勘探成败的关键;将信号不失真地记录下来,就要求数据采集系统达到低噪声、高采样率、大动态范围等性能指标;基于此,介绍了基于浮点放大技术的多通道数据采集系统,对其工作原理及硬件结构的设计进行了详细的分析,并将该系统应用于实际数据采集,试验表明,所设计的数据采集系统达到了预期的设计指标。
Geological mapping is one of the most effective means of obtaining underground information.The quality of the data acquisition has a direct effect on the results of the exploration and even is critical to the success of the exploration.In order to record the signal in condition of no aberrance,it is required that the data acquisition system achieves low noise and high sampling rate and enough wide dynamic range requirements.For this,the multi-channel data acquisition system based on floating point amplification technique is presented.The principle of work and the hardware structure are detailed analyzed.The system was applied to actual data acquisition and attained the desired design targets.

引文

[1]陈祖斌,林君,于生宝.轻便浅层地震可控震源的研制[J].仪器仪表学报,2003,24(3):311-314.
    [2]张子三,林君,陈祖斌.轻便高频可控震源的设计与实验[J].仪器技术与传感器,2000,(10):14-17.
    [3]陈祖斌,滕吉文,林君,等.BRS-2宽频带地震记录仪的研制[J].地球物理学报,2006,49,(5):1475-1481.
    [4]Chen Z B,Teng J W,Lin J,et al.Nonlinear analysis in the cou-pling process of electromagnetic vibrator and earth[J].Science inChina Ser.D Earth Sciences,2005,48(8):1175-1182.
    [5]李预斌,李小兵,张智明.基于PCI总线技术的数据采集原理及其应用[J].机电产品开发与创新,2005,18(5):103-104.
    [6]林君.电磁驱动可控震源地震勘探原理及应用[M].北京:科学出版社,2004.