基于AD7891的浮空器高速数据采集系统设计  

A design of high speed data sampling system at aerostat based on AD7891

作　　者：吴有恒[1] 荣海春[1] 

机构地区：[1]中国电子科技集团公司第38研究所,安徽合肥230031

出　　处：《电子设计工程》2015年第8期25-27,30,共4页Electronic Design Engineering

摘　　要：为解决浮空器数据采集速度慢,可靠性低的问题,本文基于浮空器需要对各传感器参数进行可靠测量的目的,采用了以模数转换器AD7891为基础的一种适合浮空器的高速数据采集方法,同时,介绍了AD7891芯片的功能,给出了设计方法和接口电路,通过系列某型系留气球的成功应用试验,验证了该系统非常适合浮空器对数据采集的实时性、准确性及可靠性的要求,为复杂控制算法的实现提供了良好的数据基础。To solve the problem of low speed and low reliability of the data acquisition on aerostat, this paper bases on the necessary to measure the parameter of sensors which is accurate and credible for the aerostat,adopts a new method on the aerostat for high speed data sampling.Also,the article introduces the function of AD7891,provides a new way about design and interface circuit, and it crucially describes data collecting and processing course. After a series of successful application experiments of a certain type of a tethered aerostat,it is confirm that the new system meets the requirements of data collection of the aerostat for real-time,accurate and reliability.Meanwhile,the new system also provides the data foundation for the achievement of complicated control algorithm.

关 键 词：浮空器 数据采集和处理 AD7891 时序 

分 类 号：TN911.71[电子电信—通信与信息系统]