基于浮点放大技术的多通道数据采集系统  

Research on Multi-channel Data Acquisition System Based on Floating Point Amplifier

作　　者：高德芝[1] 陈祖斌[2] 段建民[1] 

机构地区：[1]北京工业大学智能测控研究室,北京100022 [2]吉林大学地球信息探测仪器教育部重点实验室,吉林长春130061

出　　处：《计算机测量与控制》2009年第2期431-433,共3页Computer Measurement &Control

基　　金：北京市教委科技创新平台项目(05002011200701)

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.

关 键 词：浮点放大 数据采集 A/D转换器 多通道切换 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]