大中型电机声功率的振动测量法研究

Study on Vibration Measurement Method of Sound Power Level Emitted by Large and Medium Electric Machines

本文叙述了测量电机外表面振动速度来确定电机辐射的空气噪声的方法及其应用范围,给出了测量电机外表面振动速度来估计电机辐射的空气噪声步骤,并对测量原理、所使用的测量仪器和现场实测数据的处理都作了介绍。

A method to determine air noise emitted by electric machines with the aid of measuring vibration speed of their outer surface and its application area are described in this paper. The procedure to estimating the sound power of the air noise emitted by the electric machines with above mentioned method is given.The measurement principle, instrumentation used and handling of the field-measured data are also introduced.