引言本文介绍一种噪音测算技术设备,利用这种设备可以确定通过控制阀得到的预期的噪音水平。除了一套可靠的噪音测算技术外,费希尔控制器公司(Fisher Controls)还研制出了一整套的附加产品供选择,使用户能在特殊用途下有效地满足对噪音控制所需的等级。本文所示的分贝值由dBA表示。量A是与常人耳朵相似的频率响应特性。 Introduction This article describes a noise estimation technology that allows you to determine the expected level of noise through a control valve. In addition to a proven suite of noise measurement techniques, Fisher Controls has developed a complete suite of add-on products to enable users to effectively meet the levels required for noise control for specific applications. The decibel values ​​shown here are represented by dBA. The amount A is similar to the frequency response of an ordinary human ear.