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Title: Dirty Vs. Clean Ultrasonic Gas Flow Meters Performance
Author: Martin Schlebach, John Lansing, Tom Mooney
Source: 2005 South East Asia Flow Measurement Conference
Year Published: 2005
Abstract: The use of ultrasonic meters (USMs) for natural gas custody applications during the past few years has increased at a remarkable rate. The many benefits of USMs have been well documented over the past few years Ref 1. With the increased population of USMs in the gas industry, many users are asking ever more searching questions about this technology. One of the issues often inquired about is the performance (accuracy) of an ultrasonic meter once the internal surface changes from the original clean calibrated condition. The accuracy of all metering devices is affected when less-than-clean, pipeline quality gas contaminates the inside of the meter, the associated piping and flow conditioner.

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