β电离室的前置放大数字化在纸张定量测量中的应用  

Pre-Amplifier and Digitization of β-Ray Ionization Chamber Application in Measuring Basis Weight of Paper

作　　者：李岩[1] 侯跃新[1] 肖丹[1] 李钢[1] 周东亮[1] 

机构地区：[1]黑龙江省科学院技术物理研究所,黑龙江哈尔滨150080

出　　处：《自动化技术与应用》2010年第3期71-73,共3页Techniques of Automation and Applications

摘　　要：介绍了以单片机ATmega8为核心的纸张定量测量系统。系统利用电流积分型前放芯片DDC112进行A/D转换,实现弱小模拟信号的数字化,达到提高系统测量精度、增强测量系统的稳定性和抗干扰性的目的。This article introduces an Atmega8 microprocessor-based on-line automatic system for measuring weight of paper.The System of A/D converter is applied by DDC112.It is designed for improving anti-interfere ability and increasing stability and reliability of measuring system.

关 键 词：DDC112 纸张定量 弱电流 ATMEGA8 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]