基于相关性算法的超声波回波定位  

Ultrasonic Echo Location Based on Correlation Algorithm

作　　者：胡晖 许浩峰 包伟华 

机构地区：[1]上海自动化仪表股份有限公司,上海200072

出　　处：《自动化仪表》2015年第10期96-98,102,共4页Process Automation Instrumentation

基　　金：国家高技术研究发展计划(863计划)基金资助项目(编号:2012AA041704)

摘　　要：随着人们对产品的功耗要求不断提升,复杂的硬件比较器方式越来越不能适应工业领域发展,所以设计了一种基于A/D采样软件算法的超声波物位测量系统。软件采用相关性算法来描述两组信号的相似程度,并加以显著性差异检验,来检验两组数据是否显著相关,从而准确地进行回波定位。现场超声波物位仪表性能测试表明,该软件算法能够快速、稳定、可靠地找到回波,有一定的发展价值。As people continuously to enhance the requirement for power consumption of the products,the method of complex comparator becomes increasingly unsuited for development of industrial areas. Thus the ultrasonic material level measurement system based on A / D sampling software algorithm is designed. The system adopts the correlation algorithm to describe the degree of similarity of two groups of signals,and test the significant difference,for judging if these two groups of signals are significantly interrelated,thus precise echo location is conducted. The on-site performance test of ultrasonic material level measuring instrument show that the software algorithm is able to find the echo rapidly and stably; it possesses certain development value.

关 键 词：A/D采样低功耗相关性物位仪表超声波回波 回波定位 

分 类 号：TH82[机械工程—仪器科学与技术] TB559[机械工程—精密仪器及机械]