振动机械高振强性能的LabVIEW测控系统研究与试验

Research and Test of Measurement and Control System for High Vibration Intensity of Vibrational Machine Based on LabVIEW

在很多工况下振动机械需要在工作过程中具有宽频谱、高振强的振动性能,为破解高振强状态下难以安全运行的测控技术瓶颈,研发LabVIEW测控系统,通过试验分析振强变化规律及导致振动机械运行不安全因素,利用传感检测的振动信号放大处理后,通过数据采集卡输入到上位机,经LabVIEW程序的处理后,在采集卡输出并控制变频器,从而控制振动机的振强特性变化规律,在可控范围内进行高效、安全地工作;试验和记录表明该系统对振动机的高振强性能具有实时有效的测控效果。

In many conditions, vibration machine requires a vibration performance of a broadband spectrum and a high vibration intensity. To crack the measurement and control technology bottlenecks under high vibration intensity state where the machines are difficulty to run safely, the Lab VIEW measurement and control system is been completed. The system is using the experimental analysis of the vibration intensity changing rule and the factors which would make the vibration machine run unsafely,amplification of the detected vibration signal by sensors, inputting the data to the upper computer by using the Data Acquisition Card,processing of the Lab VIEW,outputting the data by DAC and controlling the frequency converter to control the vibration intensity changing rule of the vibration machine which could make the machine run effectively and safely under control. The experiment and the recording proved that the system could detect the ability of high vibration intensity of vibration machine effectively in real time.