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Time delay estimation in the ultrasonic flowmeter in the oil well

โœ Scribed by Jian Sun; Weijun Lin; Chengyu Zhang; Zhihui Shen; Hailan Zhang

Publisher
Elsevier
Year
2010
Tongue
English
Weight
427 KB
Volume
3
Category
Article
ISSN
1875-3892

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โœฆ Synopsis

A new prototype of ultrasonic flowmeter used in the oil well is presented. The flowmeter depends on the time delay between the propagating times of the downstream and upstream ultrasonic pulses. The ultrasonic passageway is slanted to prevent the disadvantage introduced by the high viscosity of the oil. Two method of time delay estimation: threshold and cross-correlation are both studied and realized.

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