基于微控制器MSP430的智能型电导率仪设计.PDF

1 o. 1 2010 2 M ICROPROCESSORS Feb. , 2010 MSP430 王 磊, 高 丽, 丘谨伟 (珠江水利科学研究院, 广州 510610) : 阐述了 一种智能型电导率仪的软硬件结构及工 原理本设计综合应用了低功耗高 性能的微控制器及外围芯片整个系统具有测量精度高智能化处理操 方便功耗低稳定性好 的特点 : 电导率分析仪; 频率; MSP430; 温度 DOI: 10. 3969/j. issn. 1002- 2279. 2010. 01. 035 : T 216. 4 : B : 1002- 2279( 2010) 01- 0119- 03 Des ign of the Inte lligent O n line Conductiv ity A na lyze r Based on the MS P430 M ic ro - contro ller WA G Lei, GAO Li, QIU Jin-wei (ZhuJ iang H ydra ulic R esearch Insitute, GuangZhou 510610, Ch ina) A bstract: This paper discusses an intelligent conductivity meter ofwhich software and hardware disposition and themain points of their design, aswellas themeasuring principle are described in detail. The ultralow - power and high - powered M icro - controller and other peripheral chips are used synthetically in this scheme. Thewhole design can realize some traits such as high- accuracy, intelligent processing, easy processing, rapid - detection ultralow - power, strong stability and it also possesses functions like and has friendly English- Chinesemenu. K ey words: Conductivity Analyzer; Frequency;MSP430; Temperature , k( S/ cm); 1 ( 1/cm), = L/A; L ,, ( cm); A , CE, 555 Ct , - , 1 , /, / 2 , R, G ,: 1 - G= 1/R= k : ( 1982- ), , , , : : 2009- 04- 24 120 2010 2. 1