数模转换器AD421在船舶气象仪仿真仪中的应用  

Application of AD421 in Meteorological Instrument Simulation Equipment

作　　者：王建晓[1] 漆随平[1] 初伟先 张志伟[1] 

机构地区：[1]山东省海洋环境监测技术重点实验室山东省科学院海洋仪器仪表研究所,山东青岛266001

出　　处：《机械管理开发》2011年第6期105-106,共2页Mechanical Management and Development

摘　　要：介绍了高性能数模转换器的工作原理及其在船舶气象仪仿真仪设计中的应用。设计方案利用低功耗的8位单片机AT90CAN128作核心控制器,选用低功耗的外围扩展元器件,设计4～20mA两路电流输出的船舶气象仪仿真仪;实践表明,其有低功耗、高精度、工作稳定可靠等特点。The priniciple of high precision analog conveaer AD421 and its application in the design of the MeteOrological Instrument Simulation Equipment were introduced in the article. The design scheme uses uhralow-powcr 8 bit single-chip AT90CANI28 as the central controller and chooses the other ultralow-power external chips, which has designed the Meteorological Instrument Simulation Equipment which includes the 4--20 mA two-wire current output. The application shows that it has some traits such as uhralowpower, high precision and working stability.

关 键 词：AD421 气象仪仿真仪 AT90CAN128 

分 类 号：TH766.3[机械工程—仪器科学与技术]