基于AT89C52的非分散红外测油仪的研制  

Development of the Non-Disperse Infrared oil measuring Instrument Based on the AT89C52 SCM

作　　者：孟旭东[1] 龚志广[2] 张立国[3] 秦辉[4] 

机构地区：[1]石家庄河北师范大学 [2]河北建筑工程学院,河北保定075024 [3]河北农业大学,河北071001 [4]河北北方学院,河北张家口075024

出　　处：《微计算机信息》2008年第28期227-229,共3页Control & Automation

基　　金：河北省科技攻关项目(06213583)项目名称:全自动数字万用表的研制颁发部门:河南省科技厅

摘　　要：本文介绍了非分散红外光度法原理,设计了一种基于AT89C52单片机的非分散红外测油仪。仪器采用了高精度的光源调制技术,相敏检测技术等弱信号提取技术,单片机系统全部采用新型I2C或SPI集成电路芯片设计,具有测量精度高、体积小、功耗低等特点,适用于水中矿物油和动植物油含量的检测。The principle of the Non-Dispersive Infrared （NDIR） is introduced, a Non-disperse Infrared oil measuring Instrument is designed in this paper. Special techniques of acquiring weak signal are used in the designing of the instrument, including high preci- sion source modulation technique and phase sensitivity detection technique. The new integrated CMOS ships with I2C or SPI bus are used in the designing of the SCM system. The instrument has many characteristics, such as high precision, compact space, low power waste etc. It can be widely used for content determination of mineral oil in water, animal and vegetable in water.

关 键 词：非分散红外光度法 非分散红外测油仪 切光器 相敏检测 单片机 

分 类 号：TP274.52[自动化与计算机技术—检测技术与自动化装置]