Likewise, change of the length of the ultrasonic transducers influences on the acoustic path lengths, and thus on the transit times. Change of the length of the ultrasonic transducer ports influences on the acoustic path lengths, and thus on the transit times.
Change of the Reynolds number influences on the integration method. meter body diameter change and change of the orientation of the ultrasonic transducer ports) influences on the transit times and the numerical integration method of the meter. change of the inclination angles and lateral chord positions, caused by e.g.
Change of the ultrasonic path geometry (i.e. Change of the meter body's cross-sectional area (the "pipe bore") influences directly on the amount of gas flowing through the meter. Ultrasonic gas flow meters (USMs) may be influenced by pressure and temperature in several ways.
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