Factors Affecting the Measurement Accuracy of Transmit-time Clamp-on Ultrasonic Flowmeters
Ultrasonic flowmeters are widely used for flow measurement of gases and liquids. In particular, the Transmit-time Clamp-on Ultrasonic Flowmeters has its own characteristics. Several factors can influence its measurement accuracy. 1. Fluid Properties - Viscosity: Highly viscous fluids can affect the propagation of ultrasonic waves and lead to inaccurate measurements. The more viscous the fluid, the greater the resistance to the wave propagation, which may cause deviations in the measured transit times and thus affect the accuracy of flow rate calculation. - Density: Changes in fluid density can also impact the measurement. Different densities can cause variations in the speed of sound within the fluid, which is crucial for the time difference measurement principle. If the density is not properly accounted for, it can result in errors in determining the flow rate. - Temperature: Temperature has a significant effect on the speed of sound in the fluid. As the temperature changes, the sp