基于DSP的超声波流量计的设计  

Design of Ultrasonic Flow Meter Based on DSP Processor

作　　者：刘教瑜[1] 何青[1] 杨艳[1] 陶亮[1] 

机构地区：[1]武汉理工大学自动化学院,湖北武汉430070

出　　处：《机械工程与自动化》2005年第5期60-62,共3页Mechanical Engineering & Automation

摘　　要：主要介绍了一种用专门的数据处理芯片TM S320LF 2407型DSP作为控制处理芯片的超声波流量计的设计,并重点介绍该流量计的工作原理、硬件系统构成、软件控制流程以及高频声波信号的控制处理方法。流量计采用时差测量法,根据所测得的时差计算出流体的瞬时流量,再通过积分求得累积流量。由于流量计对测量系统的精确性和实时性要求较高,所以采用专门的数据处理芯片和数字鉴相技术。This article introduces an ultrasonic flow meter. This flow meter uses TI company＇ TMS320LF2407 chip as the main control chip. And the thesis mainly describes the theory of ultrasonic flow meter, the hardware, the software and the method of processes. This ultrasonic flow meter is based on the method of time difference. According to the time difference,the CPU can calculate the instantaneous flux and the accumulative flux. Because of the request of accuracy and the performance of real time ,this ultrasonic flow meter uses the special data processing chip and digital phase technology.

关 键 词：超声波 流量计 DSP 

分 类 号：TB551[理学—物理]