Similar to most metering technologies, ultrasonic meters are known to be affected by the buildup of material on the inside of the meter and surrounding pipe due to common pipe contaminants. The buildup affects the metering accuracy by reducing the flow area and causing an increase in the gas velocity through the meter, by changing the shape of the velocity profile through the creation of additional roughness elements on the pipe wall, and by altering the ability of the ultrasonic signal to transmit between the transducers. A need existed to investigate accuracy shifts resulting from the grime ...
Similar to most metering technologies, ultrasonic meters are known to be affected by the buildup of material on the inside of the meter and surrounding pipe due to common pipe contaminants. The buildup affects the metering accuracy by reducing the flow area and causing an increase in the gas velocity through the meter, by changing the shape of the velocity profile through the creation of additional roughness elements on the pipe wall, and by altering the ability of the ultrasonic signal to transmit between the transducers. A need existed to investigate accuracy shifts resulting from the grime build up from continuous use in the field on the acoustic transducers.