基于双阈值法的超声辊型在线检测的研究

The Study on On-line Ultrasonic Roller Shape Detection Based on Dual Threshold Method

介绍一种采用双阈值法消除由于信号衰减引起幅度变化所产生的测距误差，从而实现精确超声测距。结合机械扫描，完成了辊型的在线检测。

To eliminate the error of distance measurement caused by amplitude change from signal attenuation, the method based on dual thresholds is introduced. Thus the precise ultrasonic measurement is accomplished. Combining wiht the mechanical scanning the on-line detection of roller shape is implemented.