摘要
提出一种基于参数敏感性的混沌测量电路,应用于重量测量系统。其特点是直接将重量映射为二进制代码,从而避开了放大器和A/D转换器等中间环节对重量测量精度的制约和影响,大大提高了重量测量系统的精度和分辨率。分析了混沌重量测量原理,研究了相应的混沌电路实现方法,设计了以DSP作为控制器的混沌重量测量系统。理论计算和实验数据都表明,该重量测量系统精度高,方法可行。
A chaotic circuit based on parameter sensitivity was proposed and used in weight measurement system. The circuit maps the weight into binary code directly, and avoids the restraint and influence of the middle segments such as amplifier and A/D convertor. The circuit improves the precision and resolution of the weight measurement system. The chaotic weight measurement principle is analyzed, and the corresponding realization method of the cha- otic circuit is studied. The measurement system is designed based on DSP controller. Theoretical calculation and laboratory findings indicate that the weight measurement system has high precision and the measurement method is feasible.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2009年第6期1202-1206,共5页
Chinese Journal of Scientific Instrument
基金
重庆市自然科学基金(CSTC,2007bb3404)资助项目
关键词
参数敏感性
混沌电路
重量测量
精度
parameter sensitivity
chaotic circuit
weight measurement
precision
