摘要
讨论了无损检测方法中的超声法 ,分析了超声波的基本特性、传播特点、检测中引起的误差及补偿 。
As a usual method for testing concrete, it may test and destruct a prototype only once, which can not define the position, scope of drawbacks of concrete, and can not demonstrate the extent of structure damaged by the method. Nondestructive testing can abandon these shortcomings, so is valued and applied in the engineering practice. This article analyzes the ultrasonic method, one of nondestructive testing methods. It illustrates the basic natures, spreading characters of ultrasonic wave, viewing errors by this method and remedies. Finally, it stresses the importance and measure of improving the technique.
出处
《仪表技术与传感器》
CSCD
北大核心
2001年第7期37-38,46,共3页
Instrument Technique and Sensor
关键词
无损检测
超声法
频率特性
指向特性
准确度
混凝土
Nondestructive Testing,Utrasonic-Method, Frequency Character, Pointing Character, Accuracy.