嵌入式ARM-Linux系统在便携式测流仪中的应用研究

随着嵌入式技术不断发展，微处理器已被应用于各种电子仪器的设计当中。近年来，ARM嵌入式微处理器技术发展迅速，并以其高性能，低功耗的特性成为嵌入式领域应用最广泛的32位微处理器。本课题将ARM微处理器技术率先引入到测流仪器的设计中来，采用基于ARM920T内核的AT91RM9200微处理器作为系统CPU；同时在软件方面，采用功能强大而源码免费开放的Linux系统，组成了基于ARM微处理器的Linux系统（简称ARM-Linux系统），并对这种先进的嵌入式系统在多普勒测流仪中的应用进行了研究，以期提高多普勒测流仪的整体性能。

Research on the Application of Embedded ARM-Linux System in Portable Current Measurement Instrument

With the development of embedded technology,microprocessor has been applied in the design of various kinds of electronic instruments.In recent years,ARM embedded microprocessor is progressing rapidly with its high performance and low power consumption and become the 32bit-processor applied widely in the area of embedded technology.ARM microprocessor technology is now applied in the design of current measurement instrument by authors,in which ARM920T kernal based AT91RM9200 microprocessor is adopted as the CPU of the system,in respect of software the Linux system having strong functions and free source code is used.This advanced embedded system,the Linux system based on ARM microprocessor(ARM-Linux System in short),is constructed and studied for its application in Doppler current measurement instrument to improve integrated performance of the instrument.