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When measuring the flow rate with Pitot tubes, point velocity measurements are commonly combined with traverse methods such as the equal ring method, loglinear method, and Tchebycheff method. The weighted average of the velocities of each traverse point is computed to represent the average flow velocity of the pipe section. Because these methods only consider the velocity distribution, they often...
Pitot tube is widely used for fluid velocity and flow rate measurement in industrial fields. However, improper installation of the Pitot tube is actually inevitable, which causes additional errors to the measurement. In this paper, through exploring the relationship between the pressure sensing tube and the fluid flowing direction, a correlation was deduced for calculating the theoretical flow rate...
Poor anti-disturbance ability to piping vibrations is one of the most difficult problems in vortex flowmeters which have been widely used in many industrial fields. Duct-wall differential pressure method (DDPM) proposed by the author's previous work is proved to be an effective measure to reduce these interferences. In order to improve the performance of DDPM, the relationship between pressure-sampling...
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