用于碳纤维复合材料孔隙率检测的便携式超声仪器研制  

Portable Ultrasonic Detector Used in Void Content of Carbon-fiber Reinforced Plastics

作　　者：李凌[1] 周晓军[1] 华志恒[1] 潘晓彬[1] 刘守山[1] 

机构地区：[1]浙江大学机械与能源工程学院,杭州310027

出　　处：《仪器仪表学报》2006年第4期420-422,共3页Chinese Journal of Scientific Instrument

摘　　要：针对航空领域专用的碳纤维复合材料板材,以超声波的声衰减模型为基础,研制了用于孔隙率检测的便携式超声仪器。介绍了检测原理、硬件体系结构和软件的开发思想。仪器采用笔记本电脑控制信号的采集、处理和显示,系统轻巧,便于携带,能够快捷、准确地完成碳纤维复合材料板孔隙率的检测,非常适合现场使用。On the basis of ultrasonic attenuation model, a portable detector used in void content of carbon-fiber reinforced plastics in aeronautic field is developed. The test principle, hardware structure and software developing idea of the detector are introduced. The detector employs notebook computer to control signal＇s collecting, processing and displaying so that the whole system is light and portable. The result shows that the detector can accurately test the void content of carbon-fiber reinforced plastics on the spot.

关 键 词：超声波 衰减系数 碳纤维复合材料 孔隙率 

分 类 号：TH878.2[机械工程—仪器科学与技术] TP216.1[机械工程—精密仪器及机械]