2002•Journal of the Korean Society for Nondestructive TestingRequires access

Development and Application of an Ultrasonic Gas Flowmeter

Won-Ho Hwang, Sang-Gug Park, Hee-Don Jeong, Kyung-Young Jhang

Abstract

This paper describes the development and the field application of the ultrasonic gas flowmeter for accurate measurement of the volumetric flow rate of gases in a harsh environmental conditions in iron & steel making company. This ultrasonic flowmeter is especially suited for measuring LDG, COG, BFG gases produced in iron & steel making process. This is a transit time type ultrasonic flowmeter. We have developed the transmitting & receiving algorithm of ultrasonic wave and the ultrasonic signal processing algorithm to develope a transit time type ultrasonic flowmeter. We have evaluated the performance of ultrasonic flowmeter by the calibration system with Venturi type standard flowmeter. We has confirmed its reliability by extensive field tests for a year in POSCO, iron & steel making company. Now we have developed the commercial model of ultrasonic flowmeter and applied to the POSCO gas line.

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Available abstract

Key concepts: Ultrasonic sensor, Ultrasonic flow meter, Flow measurement, Venturi effect, Acoustics, Ultrasonic testing, Engineering, SIGNAL (programming language)