基于LabVIEW的噪声数据采集系统

Noise Data Acquisition System Based on LabVIEW

以声级计和PC机为硬件基础,利用声级计的串口通信功能,基于labVIEW实现噪声数据采集系统开发。借助串口调试助手完成系统调试和随机信号测量,将其应用到FSAE赛车排气噪声测试并实现系统验证。该系统运行稳定、操作简单,扩展性较好,可实现噪声信号瞬态与最大值的提取功能,并具有噪声信号的实时采集、显示、存储和回放等功能。

On the basis of sound level meter and PC,the development of noise data acquisition system was realized based on labVIEW by using the serial communication function of sound level meter.The system debugging and random signal measurement were completed with the help of serial debugging assistant,and the system verification was achieved by using the FSAE racing exhaust noise test.The transient and maximum of noise signals can be extracted using this system,and the function of real-time data acquisition,display,storage and playback of noise signals can be realized.The system has stable operation,simple operation and good expansibility.