FUNDAMENTALS OF MULTIPATH ULTRASONIC （多路超声波原理）.pdfVIP

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FUNDAMENTALS OF MULTIPATH ULTRASONIC （多路超声波原理）.pdf

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FUNDAMENTALS OF MULTIPATH ULTRASONIC （多路超声波原理）

FUNDAMENTALS OF MULTIPATH ULTRASONIC FLOW METERS FOR GAS MEASUREMENT Eric Thompson Regional Sales Manager 15415 International Plaza Drive, Suite 100 Houston, Texas 77032 Summary applications. Non-Intrusive: Minimal pressure drop. This paper outlines the operating principles and application of ultrasonic gas flow metering for Low Maintenance: No moving parts means reduced maintenance. custody transfer. Basic principles and underlying equations are discussed, as are considerations for Fault Tolerance: Meters remain relatively applying ultrasonic flow meter technology to station accurate even if sensor(s) should fail. design, installation, and operation. These Integral Diagnostics: Data for determining a applications are illustrated based on operating experience with the SICK ultrasonic flow meter, It is clear that there are many important benefits to however many of these issues can be generalized to using USMs. The most significant, however, is the other meter manufacturers. question users want to know is whether the meter is Introduction still accurate after h