Review on Key Technologies of Infrared Thermal Wave Detection Technology in Parts Defects

2012 ◽  
Vol 542-543 ◽  
pp. 814-817
Author(s):  
Jian Min Zhou ◽  
Li Juan Fan ◽  
Rui Feng Zhang

Infrared thermal wave detection technology has been found to be a new type of wide attention non-destructive testing (NDT) method due to its non-contact, non-destructive, rapidity, wide imaging field and advantages of direct observation. Key technologies and the latest research progress of the infrared thermal wave technology in parts defects are reviewed in this paper. The key technologies include the heat stimulator, infrared thermal image processing, heat transfer analysis and etc. The existing problems of the technology are also pointed out.

2013 ◽  
Author(s):  
Ravibabu Mulaveesala ◽  
V. S. Ghali ◽  
Vanita Arora ◽  
Juned A. Siddiqui ◽  
Amarnath Muniyappa ◽  
...  

2015 ◽  
Author(s):  
Juned A. Siddiqui ◽  
Ravibabu Mulaveesala ◽  
Ghali Venkata Subbarao ◽  
Amarnath Muniyappaa

2015 ◽  
Vol 742 ◽  
pp. 128-131 ◽  
Author(s):  
Jian Min Zhou ◽  
Jun Yang ◽  
Qi Wan

This paper introduces the theory of eddy current pulsed thermography and expounds the research status of eddy current pulsed thermography in application and information extraction. Thermographic signal reconstruction, pulsed phase thermography, principal component analysis were introuduced in this paper and listed some fusion multiple methods to acquire information from infrared image. At last, it summarizes research progress, existing problem and deelopment of eddy current pulsed thermography.


Author(s):  
Mu Xueyu ◽  
Yang Shaojie ◽  
Kong Xiangdong

As a new type of accelerometer, in recent years, the magnetic liquid acceleration sensor has attracted widespread attention worldwide, and related research results have also continued to emerge. This article mainly introduces the theoretical basis and general structure of the magnetic liquid acceleration sensor, and according to the difference of inertial mass, briefly describes the research progress of the magnetic liquid acceleration sensor by national and foreign scholars in recent years and some in existing problems. Finally, suggestions and prospects for the future development trend of the magnetic liquid acceleration sensor are given.


2021 ◽  
Vol 13 (18) ◽  
pp. 3696
Author(s):  
Yuri Álvarez López ◽  
María García-Fernández

Ground Penetrating Radar (GPR) has become one of the key technologies in subsurface sensing and, in general, in Non-Destructive Testing (NDT), since it is able to detect both metallic and nonmetallic targets [...]


Author(s):  
Ju Ding ◽  
Min Zhang ◽  
Shu-hong Liu ◽  
Chen-huai Tang ◽  
Xu-chen Zhu ◽  
...  

Abstract This paper discusses four different ultrasonic guided wave standards. Three of them are China’s national standards or industry standards: GB/T 31211-2014 “Nondestructive Testing Ultrasound Guided Wave Detection”, GB/T 28704-2012“Non-destructive testing—Test method for ultrasonic guided wave testing based on magnetostrictive effects”, and DL/T 1452-2015 “Thermal Power Pipeline Ultrasound Guided Wave Detection”. The another one is ASTM E2929:“Standard Practice for Guided Wave Testing of Above Ground Steel Piping with Magnetostrictive Transfusion”. Through six aspects in this article, including testing application scope, preliminary requirements, standard specimen and comparative specimen, distant amplitude curve and time gain curve, the existing difference between China and America is obvious and diversity. It is necessary to explore the underlying reasons for the connection of Chinese code and international code in the field of Non-destructive testing. During the standardization, anyone of the standard should be actually compared on the presentation of chart, and the verification and comparison of results, and lists the similarities and differences of each part based on GB31211. This paper provides reference for China to integrate with foreign standards in the field of ultrasonic guided wave detection of pressure vessel and pipelines.


2013 ◽  
Vol 462-463 ◽  
pp. 55-58
Author(s):  
Yi Yao ◽  
Ya Chuan Yao ◽  
Qiang Han ◽  
Hong Song

Electronic tongue is a new type of modern analytical instrumentation based on the human taste receptor research mechanism. Use the sensor array, as the biological sensing taste buds cells, to detect object,and to get results by the method of pattern recognition. Introduce the principles of electronic tongue, the study of several typical systems. Focus on the application in liquor quality, microbial detection, as well as some existing problems in the research development.


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