CSA-SVM method for internal cavitation defects detection and its application of district heating pipes
Yanran Chen,Shugen Ma,Longchuan Li,Zhiqing Li,Yulin Yang,Yanran Chen,Shugen Ma,Longchuan Li,Zhiqing Li,Yulin Yang
The goal of this paper is to develop an ultrasonic detection device that can be mounted on an underwater snake vehicle (USV) for underwater district heating pipe (DHP) detection in the future. Ultrasonic detection technology (UDT) is the detection means used, and the cavitation defects in polyurethane (PUR) layer of DHPs are the object being detected. Due to the large thickness of PUR layer and th...
