[1]王超,潘玮华,刘苏仪,等.一种超声波液位测量仪的设计方案[J].南京师范大学学报(工程技术版),2010,10(03):044-46.
　Wang Chao,Pan Weihua,et al.A Scheme on Ultrasonic Level Meter Design[J].Journal of Nanjing Normal University(Engineering and Technology),2010,10(03):044-46.
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一种超声波液位测量仪的设计方案
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
10卷
期数:
2010年03期
页码:
044-46
栏目:
出版日期:
2010-03-01

文章信息/Info

Title:
A Scheme on Ultrasonic Level Meter Design
作者:
王超1;  2;  潘玮华1;  2;  刘苏仪1;  2;  詹千熠1;  2;  邓程1;  2;  冯学军1;  2
1. 南京师范大学计算机科学与技术学院, 江苏南京210046; 2. 江苏省信息安全与保密技术工程研究中心, 江苏南京210097
Author(s):
Wang Chao1; 2; Pan Weihua1; 2; Liu Suyi1; 2; Zhan Qianyi1; 2; Deng Cheng1; 2; Feng XueJun1; 2
1.School of Computer Science and Technology,Nanjing Normal University,Nanjing 210046,China;2.Jiangsu Research Center of Information Security and Confidentical Engineering,Nanjing 210097,China
关键词:
超声波;  误差修正;  样本中位数;  最小二乘法
Keywords:
ultrason ic w av e;  error co rrec tion;  samp le m ed ian;  ordinary least squa re
分类号:
TP216.1
摘要:
给出了一种运用单片机开发超声波液位测量仪的软件硬件设计方案,重点分析了测距过程中误差产生的原因,运用"箱线图"法求样本中位数作为测量值对采集数据进行校准,以消除信号噪声,采用最小二乘法减小硬件软件实现上产生的误差.该设计方案已应用于某油田井场数千个储油罐液位的测量,取得了较好的效果.该设计方案因实现简单、生产成本低,适合测量距离在3 m以内、精度要求在4 mm以内的应用场合.
Abstract:
In th is paper, w e introduce a schem e o f softw are and hardw are design for an u ltrason ic leve lm eter imp lem ented by us ing single ch ip, and m eanwh ile analyze the reasons that produce errors in the process o f range find ing. In order to e lim inate the signa l no ises, w e present a calibrating strategy by em ploy ing the m edian o f sam ples obta ined by ?? boxline graph?? as them easur ing va lue o f the sam pling data. M eanwh ile, by usingO rd inary Least Square( OLS), the errors im plem ented by correspond ing system can be furthe r reduced. Cu rrently, this schem e has been e fficiently applied to m easure the leve l of thousands of o ilcanes in an o il field. In addition, this schem e is also su itab le for othe r app lications tha t them easuring d istance is less than 3m and the precision is less than 4mm because o f its simp lic ity and low cost.

参考文献/References:

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[ 3] 赵小川, 罗庆生. 基于伪随机序列自相关性的新型超声波测距系统[ J]. 压电与声光, 2009, 31( 6): 856-858. Zhao Xiaochuan, Luo Q ingsheng. A novel u ltrasonic rang ing sy stem based on the se l-f co rre lation o f pseudo- random sequence [ J]. Piezoe l Ectr ics and A coustooptics, 2009, 31( 6): 856-858. ( in Chinese)
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[ 5] 孙明明. 超声导航移动机器人关键技术的研究[ D]. 杭州: 浙江大学研究生院, 2005. SunM ingm ing. Study on the key techno log ies fo r u ltrasonic nav iga tion m obile robot[ D] . H angzhou: Graduate School of Zhejiang Un ive rsity, 2005. ( in Ch inese)
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备注/Memo

备注/Memo:
通讯联系人: 冯学军, 实验师, 研究方向: 单片机开发. E-mail: fengxuejun@ njnu. edu. cn
更新日期/Last Update: 2013-04-02