A new design for ultrasonic gas flowmeter

被引：0
|
作者：
Ha, Zhang [1 ]
Gu, Yu [1 ]
Zhou, Kangyuan [1 ]
Shi, Jun [2 ]
机构：
[1] Univ Sci & Technol China, Dept Elect Engn & Informat Sci, Hefei 230027, Anhui, Peoples R China
[2] Shanghai Univ, Sch Commun & Informat Engn, Shanghai 200041, Peoples R China
来源：
WCICA 2006: SIXTH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION, VOLS 1-12, CONFERENCE PROCEEDINGS | 2006年
关键词：
ultrasonic flowmeter; digital AGC; error correction; high frequency counting;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
An ultrasonic gas flowmeter with high precision was designed for the situation of small tube caliber and fluctuating flow speed. Both weak signal detection and advanced high frequency CPLD circuit were used in this design. The flowmeter had the features of digital automatic gain control (AGC), adaptive error correction and high frequency counting. It worked in multiple MCU pipeline structure and provided several standard industrial output interfaces. The tests in industrial environment showed that its maximum measurerangewas +/- 30m/s and its precision was +/- 0.5%.
引用
收藏
页码：5223 / +
页数：2
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