Gusts can cause variations in the test section dynamic pressure, and in the distribution of dynamic pressure across the test section. 阵风会使试验段动压和试验段截面动压分布发生变化。
Under favourable circumstances hydrodynamic pressure may be generated to oppose the flow due to the applied pressure. 在有利的环境下，可产生流体动压力来阻止由所加压力引起的流动。
In order to avoid being affected by sudden change of measured medium or pulsant pressure, additional buffers should be installed. 为了保证仪表不受被测介质的急剧变化或脉动压力的影响，加装缓冲器。
