摘要
本系统以集成电路模块,A/D和AT89C52为核心,利用硅光电池和运放实现光电转换,测量入射和透射光的强度,依据朗伯—比耳比色原理,微控器可自动计算出溶液的化学需氧量(COD)值。系统还具有测试数据的打印,实时时钟,超量程报警等功能。同时系统还提供PC串口通信与数据库管理系统,便于测量结果的保存和分析。
This system takes the IC, A/D and AT89C52 as key module, according to Lambert-Bill＇s law and colorimetric principle, uses silicon photovohaic cells and operational amplifier to realize photoelectric conversion. Incident light and transmitted light intensity of liquid are measured. COD of the liquid sample can be automated calculated by microcontroller. Additionally, the system still has the function of print, clock and alarm etc. And the system still offers PC communication and database management subsystem to store and analyze the result of COD measurement.
出处
《传感器与微系统》
CSCD
北大核心
2010年第9期116-118,共3页
Transducer and Microsystem Technologies
基金
甘肃省科技攻关计划资助项目(2GS047-A52-002-07)
关键词
光度测量
光电转换
化学需氧量
智能测量
单片机
photometric measurement
photoelectric conversion
chemical oxygen demand （COD）
intelligence measurement
microcontroller
