A New Design for Ultrasonic Gas Flowmeter

Author

Ha, Zhang ; Gu, Yu ; Zhou, Kangyuan ; Shi, Jun

Author_Institution

Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei

Volume

1

fYear

0

fDate

0-0 0

Firstpage

5223

Lastpage

5227

Abstract

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 measure range was plusmn30m/s and its precision was plusmn0.5%

Keywords

flowmeters; pipe flow; ultrasonic measurement; CPLD circuit; MCU pipeline structure; adaptive error correction; complex programmable logic device; digital automatic gain control; fluctuating flow speed; high frequency counting; microcontroller unit; standard industrial output interface; tube caliber; ultrasonic gas flowmeter; weak signal detection; Circuits; Design engineering; Electron tubes; Error correction; Frequency; Gain control; Information science; Programmable control; Signal design; Signal detection; digital AGC; error correction; high frequency counting; ultrasonic flowmeter;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on

Conference_Location

Dalian

Print_ISBN

1-4244-0332-4

Type

conf

DOI

10.1109/WCICA.2006.1713388

Filename

1713388