首页>
外国专利>
ULTRASONIC INSPECTION SYSTEM EMPLOYING SPECTRAL AND TIME DOMAIN PROCESSING OF ULTRASONIC SIGNAL
ULTRASONIC INSPECTION SYSTEM EMPLOYING SPECTRAL AND TIME DOMAIN PROCESSING OF ULTRASONIC SIGNAL
展开▼
机译:超声检查系统,采用超声信号的频谱和时域处理
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method performed by an ultrasonic inspection system includes delivering to a multilayer structure an ultrasonic pulse that sweeps through a chirp bandwidth, and receiving from the multilayer structure ultrasonic energy including a series of time-overlapping reflections of the pulse delivered to the multilayer structure from layers of the multilayer structure. The method also includes performing frequency domain processing on the ultrasonic energy to produce frequency resonance peaks respectively indicative of distinct layers of the multilayer structure, and performing time domain processing on the ultrasonic energy to compress the time-overlapping reflections into respective time-separated reflection time peaks. The method also includes displaying the frequency resonance peaks on a frequency domain plot, and displaying the reflection time peaks on a time domain plot.
展开▼