数字滤波技术在精密测量仪表中的应用研究  

Research on the application of digital filtering technology to accurate measuring instrument

作　　者：彭先洪[1] 姚云茂[1] 何共建[1] 刘磊[1] 

机构地区：[1]92601部队

出　　处：《国外电子测量技术》2009年第11期60-62,共3页Foreign Electronic Measurement Technology

摘　　要：数字滤波技术是信号处理中一种重要的去噪消除干扰方法。通过分析,在介绍嵌入式计算机和24位A/D数据采集系统在微弱信号测量仪表中应用的基础上,给出了数字滤波的一般方法和步骤,研究了平均值滤波、零点偏移滤波和输入短路本机噪声滤波3种数字滤波方法,实验结果表明数字滤波技术在精密测量仪表中能提高仪表的测量精度,具有良好的实用性。Digital filtering technique is an important de-noising and jamming-removing method in the signal processing. It outline the general approach to digital filtering and steps base on the embedded computer and the application of weak signal in measuring instrument by 24-bit A/D data acquisition system though analyzing. We study the three digital filtering methods of an average filtering, zero-offset filtering, input-short-circuit noise filtering and give the digital filtering process and steps. The results of the experiment show that digital filtering technique can improve the measurement precision of the accurate measuring instrument, it is good at practicability.

关 键 词：数字滤波 测量 仪表 应用研究 

分 类 号：TB971[一般工业技术—计量学]