针对工程测试对数据采集的实际需要,基于虚拟仪器的设计思想,采用USB接口进行数据采集,设计完成了一套振动信号测试与分析系统。以USB2088数据采集卡为基础,依托VS2008开发平台,编写了系统的采集和分析程序,实现了对数据的保存、波形显示和频谱分析的同步进行。最后进行了实验测试,验证了系统采集数据准确无误,满足功能要求,性能稳定,便于广泛应用。
According to actual need of the engineering measurement for data acquisition, a vibration signal testing and ana- lysis system based on USB interface and virtual instruments design method was designed. Relying on VS2008 platform, the ac- quisition and analysis program was compiled on the basis of USB2088 data acquisition card. realizes The synchronization execu- tionof data saving, waveform display and spectral analysis was realized. The experimental test of the system was successfully completed. The result indicates that the system can acquire data accurately, is able to meet the function needs, works stable, and is easy to be widely used.