智能化仪表实现微小量检测的两个软件措施  

Two software measures used in intelligent instrument design for detecting Micro-Signal

作　　者：郑宏兴[1] 龚仁喜[2] 葛德彪[1] 

机构地区：[1]西安电子科技大学物理系,西安710071 [2]广西大学电器工程学院,南宁530004

出　　处：《自动化与仪器仪表》2001年第2期49-51,共3页Automation & Instrumentation

摘　　要：提出了多点平均和展宽频带的算法。利用计算机的数据存储器作为数字式多点平均器的存储器 ,用于检测完全被噪声遮蔽的信号。当模拟 -数字转换 (ADC)器件采样频率一定时 ,采用展宽频带的方法可以实现对高频和很低频率信号的实时处理 ,从而提高了仪表的精度 。It is put forward a new method of restoring signal covered with noise and widening frequency band of instrument.The core of the method is that our making full use of memory of personal computer takes for register of digital multi-point averager and that our increasing or decreasing collecting data point achieves high and low frequency signal collected when the time of ADC chip is fixed.This method makes the intelligent instrument can process some high and low frequencv signals covered with noise with higher precision.

关 键 词：多点平均 存储器 采样 展宽频带 智能仪表 微小量检测 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置] TP274[自动化与计算机技术—控制科学与工程]