A calibration method of workpiece frames for ultrasonic testing using twin-robot

2016 ◽  
Author(s):  
Shao-chun Liu ◽  
Juan Hao ◽  
Zong-xing Lu ◽  
Ming-chuan Zhang ◽  
Jian Zhao
Keyword(s):  
Ultrasonic Testing ◽  
Calibration Method

scholarly journals Trajectory planning method for improving alignment accuracy of probes for dual-robot air-coupled ultrasonic testing system

2019 ◽  
Vol 16 (2) ◽  
pp. 172988141984271 ◽  
Author(s):  
Canzhi Guo ◽  
Chunguang Xu ◽  
Dingguo Xiao ◽  
Juan Hao ◽  
Hanming Zhang
Keyword(s):  
Ultrasonic Testing ◽  
Degrees Of Freedom ◽  
Calibration Method ◽  
Testing System ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Testing Scheme ◽  
Inspection Process ◽  
Non Destructive ◽  
Constraint Method

Composite workpieces, especially the complex-curved surfaces composite workpieces, have been increasingly used in different industries. Non-destructive testing of these parts has become an urgent problem to be addressed. To solve the problem, this article presents a dual-robot air-coupled ultrasonic non-destructive testing scheme and introduces the structure of the system and a general calibration method for the workpiece frame of a dual-robot system in detail. Importantly, this article proposes a tangential constraint method, which makes the probes completely aligned during the inspection process. Verification experiments and ultrasonic testing experiments for a glued multilayered composite workpiece were performed using the dual-robot air-coupled ultrasonic non-destructive testing system. A comparative experiment was also performed using a dual-robot water jet-coupling ultrasonic testing system. Experimental results show that the dual-robot non-destructive testing scheme and the tangential constraint method function well, and all the artificial defects on the sample can be detected by both kinds of testing methods. Vivid 3-D C-scan image based on the test result is provided for convenience of observation. In other words, a kind of flexible versatile testing platform with multiple degrees of freedom is established.

Development of Ultrasonic Testing System of Rubber Roll for the Paper Manufacture

2005 ◽  
Vol 59 (9) ◽  
pp. 1293-1301
Author(s):  
Shigeki Watanabe ◽  
Mitsunao Ariji ◽  
Kazuo Kobayashi
Keyword(s):  
Ultrasonic Testing ◽  
Testing System
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