摘要
利用敲击使试件产生振动,通过换能器接收试件声信号。利用频谱分析的方法识别具有不同厚度涂层试件的频率特性。结果表明,不同试件的主频不同,且与其结构尺寸有关。
The acoustic signals from the specimen impacted by a steel ball were received by a transducer. The frequency characters of the specimens with coatings of different thicknesses were studied by frequency spectrum analysis. Experimental results showed that the main frequencies of the uncoated steel plates agreed with their in-herent frequencies approximately.
出处
《无损检测》
1999年第6期260-262,共3页
Nondestructive Testing
关键词
涂层
声振
频谱分析
热喷涂
无损检测
Coating Acoustical testing Frequency spectrum analysis
