scholarly journals An automatic loading system for rock core testing with an industrial CT scanner

2011 ◽  
Vol 8 (4) ◽  
pp. 490-493 ◽  
Author(s):  
Hong Zhao ◽  
Yixin Zhao
2016 ◽  
Vol 39 (1) ◽  
pp. 65-78
Author(s):  
Józef Błachnio ◽  
Artur Kułaszka ◽  
Marek Chalimoniuk ◽  
Piotr Woźny

Abstract The quality of welded joints depends on many factors. The relevant standards stipulate technical conditions of welds quality assessment, which provides the basis for stating whether the given joint is compatible with the requirements or whether it is defective. In practice, making welded joints that are totally devoid of defects is extremely difficult. To conduct the control of inner structure of the given joint a non-destructive method with the application of industrial CT scanner might be applied. This modern diagnosing method combines the x-ray examination with advanced computer technology. The basic advantage of computer-assisted tomography consists in examining objects in three dimensions and the possibility to carry out three-dimensional reconstructions. The aim of this article is to discuss the use of this method to evaluate the quality of welded joints made of aluminium alloys. Capabilities of computer-assisted tomography were depicted by the case of weld probes constructed with TIG (ang. Tungsten Inert Gas) welding by different process variables. One has made the analysis of the quality of probes showing the smallest and the biggest internal and external welding defects.


2012 ◽  
Vol 590 ◽  
pp. 459-464
Author(s):  
Peng Jun Zhang ◽  
Yu Cheng Bo ◽  
Hui Yuan Wang ◽  
Qiang Li

The motion process of the automatic loading system is a high overloading and intermittent motion environment will bring about motor windings loosening, transmission system wear and tear, fracture, sensor failure and other security risks or system failures. In the paper no-stationary signal analysis by wavelet transform through wavelet decomposition and non-linear threshold de-noising. And use PCA established system model for on-line monitor. By calculate and analysis four kind of result to find fault source. Finally through the experimental prove the reliability of the method.


2014 ◽  
Vol 496-500 ◽  
pp. 1273-1276
Author(s):  
Guo Bao Ding ◽  
Fushan Yao ◽  
Guangxu Ren ◽  
Jie Yu

Based on the theory of electromagnetic compatibility, in view of the automatic loading control system, and carries on the EMC design, analyzed the sensitive circuit part of the principle and method of EMC design, mainly includes the power supply part, CPU control chip, the digital interface circuit and D/A conversion circuit protective measures.


2016 ◽  
Vol 23 (s1) ◽  
pp. 144-151 ◽  
Author(s):  
Yang Shen

Abstract During the loading operation of a ship loader in bulk terminal, in order to bring bulk cargo, such as coal and ore, precisely into every corner of the cabin and not to raise dust at the same time, the slip barrel mechanism usually is placed fully inside the ship cabin near the cargo as close as possible. However, if too close, it will increase the risk of collision between slip barrel and cargo, which poses a security risk to loading operation. This article proposes an anti-collision method for slip barrel in the process of automatic ship loading in bulk terminal. This method can accurately position the cargo of cabin which is blocked by slip barrel and shovel, and provide a reliable guarantee for the automatic loading operation. Firstly, this method use an array of laser radar mounted on the maintenance platforms to perceive the collision objects around the slip barrel, including the cargo and cabin. Meanwhile, it provides a compensation algorithm to reduce the effect of anti-collision recognition brought by dust and various obstacles during the operation. According to the calculated effective distance between the cargo and slip barrel, the automatic control system of ship loading can adjust the loading operation on a real-time basis. In the end, this article analyze and illustrate the reliability and validity of this method by the case of the application in automatic ship loading system in Tianjin coal terminal.


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