关键词: 通风机, 风阻调节, 风机风量, 动压法, 静压差法

Abstract: Must solve the two problem of adjusting wind resistance and wind delivery when making the scheme of performance measurement of fan. Must contrast, complement and combine the various methods when making the scheme. This article iIntroduces in detail five kinds of adjusting wind resistance and the mode of the frequency fan, introduces three kinds of measurement and theirs merits and faults of pressure and wind delivery by wind instrument and velocity pressure and differential static pressure and so on. By the contract of the experiment, should select firstly the velocity pressure method, between the velocity pressure and differential static pressure when the two methods for wind rate are adaptive alternatives.