卷曲能是烟用醋纤丝束的重要质量指标。卷曲能的大小由卷曲机压板压力和对辊压力进行控制，经分析发现卷曲能的量级与压板的振动大小直接相关。因此，本文介绍了一种采用电涡流传感器测量卷曲机压板的振动，从而经过建模和计算快速获得卷曲能的方法，同时开发了一套卷曲机振动信号监测系统。监测系统和卷曲能快速测量方法经实际生产验证，结果表明测量所得的卷曲能数据比测试卷曲能数据更加稳定，而且能迅速反应卷曲机压板压力状态的变化。

Uncrimping energy is an important quality index to measure the crimping effect of cellulose acetate fibers. It is determined by both crimp cap force and crimp roller force. It is found by analyzing that umcrimping energy is determined directly by vibration of crimp cap. In order to evaluate the stability of uncrimping energy, we develop a real-time signal monitoring system which is used to detect vibration signals of crimping machine. The electric vortex sensor is used to measure the swing of crimp cap. Finally, the umcrimping energy of this system is calculated with Root-Mean-Square Value, Peak to Peak Value and Average Value. During the on-line application, the results indicated that the umcrimping energy data which measured by monitoring system were more stable than practical and could rapidly reflect the force changes of crimp cap and roller.