机器设备噪声监测系统设计

机器设备非稳态噪声的测量,采用声级计往往无法清楚地了解每时刻的噪声是否超标,而且只能近距离测量。为此,设计了一个机器设备噪声监测系统,系统由声级计、PC机和串口线连接构成,采用MATLAB语言编写系统软件。该系统可以把声级计测量数据传输到PC机用户界面进行同步显示,并且可以在PC机界面上实现噪声测量值超限报警功能。经过实测,该系统的测量结果达到设计要求,可方便地用来检测机器设备运行噪声是否超限。

Design of monitoring system for macnines and equipment noise

Sound level meter is used for measuring unsteady noise of machines,however it is often unable to clearly display whether or not the noise is excessive at any time,and can’t be manipulated in a distance.To solve the problems above,a monitoring system is designed,which includes a sound level meter,PC and series cable.The software for the system is base on MATLAB.The measurement data are transferred to the computer and displayed synchronously with the sound level meter.Meanwhile,the system will alarm when the measurement data exceed the limit value.The results of the trial run showed the system meet the design requirements.It can be expediently used to detect if the machine operation noise is excessive.