基于A/D转换最小二乘法的数据采集应用  

Applications of Data Acquisition Based on A/D Converter and Least Square Method

作　　者：许勇[1] 叶刚 卞青青[1] 蒋梁中[1] 

机构地区：[1]华南理工大学,广东广州510640 [2]福泽科技嘉兴有限公司,浙江嘉兴314050

出　　处：《微计算机信息》2009年第11期280-282,共3页Control & Automation

摘　　要：针对在工业污水处理过程当中,监测仪器所监测到的数据往往是通过各种模拟信号输出,而这些模拟信号必须通过A/D转换器变换为数字信号后才能送入计算机或数据采集器。基于此本文给出了一种基于TLC2543的串行A/D转换的设计,实现了对监测数据模拟量的转换,满足了低成本、低误差、抗干扰能力强的需要,并通过最小二乘法算法进行输出数据修正,达到了环保部分对有机污染物监测数据精度的要求。The data what the monitoring equipment monitors in the industrial sewage treatment process often outputs through a variety of analog signals, but these analog signals that must converter digital signals by analog-to digital converter input computer or data acquisition device. For this reason, this paper gives a design which is based on TLC2543 Serial A / D converter. It implements analog to digital for monitoring data, and meets the need for the low-cost,low error and strong anti-interference capability, and the output data is amend by the least squares method algorithms to achieve accuracy requirements for the organic pollutants monitoring data in the environmental part.

关 键 词：最小二乘法 A/D转换 TLC2543 数据采集 

分 类 号：TP335.1[自动化与计算机技术—计算机系统结构]