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Design and Implement of High-accuracy On-line Metal Thickness Measuring Instrument Based on NiosII Processor Yang Shou-liang1, a Yang Bao-liang1, b, 1Chongqing University of Arts and Sciences Chongqing 402160 P.
Start System Initialization of FPGA Key Scan Select the Materials Start Measuring Start AD conversion Digital Filtering Show the Result with LCD N Y Fig.5 Flow chart if main program 4.2 Software debugging The system software is based on NIOS II C language , and The program is modular structure, thus after the successful debugging of hardware, the Debugging is mainly divided into several modules, including the debugging of the display program , AD conversion process, thickness acquisition program, and alarm program, Specific debugging steps are as follows: 1）Liquid crystal display program debugging 2）Debugging AD conversion program 3）Debugging AD sampling, digital filter, liquid crystal display program 4）Debugging keyboard control procedures 5）Alarm function module program debugging 4.3 Performance analysis In order to test the performance of the instrument, we have used some measuring instruments, such as YB1602 function signal generator, RIGOL DS5062CA oscilloscope
Acknowledgements This work was supported by the Chongqing Education Commission Science and Technology R search Project Foundation (Grant No：KJ131208) and Chongqing Yongchuan Science and Technology Research Project Foundation(Grant No：Ycstc,2013nc8004).
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Luminescent Properties of MgLaLiSi2O7:Eu3+ Phosphors via Sol-Gel Process Han Xiumei a, Ren Denghui, Wang Yingling, Sun Guifang, Qi Xiwei Department of Materials Science and Engineering, Northeastern University at Qinhuangdao Branch, Qinhuangdao 066004, P.
Introduction Attention is currently paid to the synthesis of rare earth silicates which is a suitable host lattice for luminescence materials with high physical and chemical stablity.
The main starting materials for the synthesis were La2O3, Eu2O3 (99.99%), Li2CO3, MgCO3and HNO3 (A.R.).
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Therefore the development of coal gasification technology depends on the development of metallic materials that could offer better resistance to gas corrosion in complex atmospheres than the materials produced so far.
Test materials and methods The study of the oxidation kinetics was carried out on chromium-manganese steel of an austenitic structure.
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Analysis of Sound Transmission Loss through Multiple Structures Containing Foam Aluminum Baokun Han 1, a, Fengmin Zheng 1, b 1Shandong University of Science and Technology, College of Mechanical and Electronic Engineering, Qingdao, 266510, China ahanbaokun@sdust.edu.cn, bzhengfengmin@126.com Keywords: acoustics, foam aluminum, multiple structure, sound transmission loss Abstract: As a new functional material, foam aluminum is characteristic of sound absorption and vibration attenuation.
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However, the mechanism and process of fatigue failure under variable amplitude loading conditions is random in nature owing to a variety of indeterminable factors in materials as well as external environments.
Many issues related to statistical characteristics of fatigue have been involved, such as the combined randomness of loading process and fatigue resistance of materials(H.
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Introduction Reverse logistics (RL) is a business management tool that can contribute to reducing the cost of procuring raw materials and moderate environmental deterioration caused by waste[1].
Bustos-Flores, Implementation of reverse logistics as a sustainable tool for raw material purchasing in developing countries: The case of Venezuela, International Journal of Production Economics, (2012)
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Their possible role in the process of deformation and fracture of materials under study were evaluated.
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Introduction In the thermal plasmas spray, plasma gas temperatures can be acquired about 18,000K, thereby enabling melting any materials injected into the plasma jet, including ceramic materials with high melting point.
Acknowledgements This work was supported by the National Natural Science Foundation of China General Project Grant (No.51172033).
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Steady state non linear FE analysis including both material and geometrical non linearities is used to determine the ultimate strength of the dented plates.
The dimensions and material properties of the structural steel plate [7] [9][10] are Length (a) = 500 mm, Width (b) = 500 mm, Thickness (t) = 4, 6, 8, 10, 12, 14, 16, 18 and 20 mm, Young’s modulus (E) = 2.058 x 105 N/mm2, Yield stress (σy) = 313.6 N/mm2, Poisson’s ratio (ν) = 0.3, Mass density (r) = 7800 kg/m3, Zero strain hardening effect is assumed.
Advanced Materials Research, 189-193(2011) 4434-4437
[11] Raviprakash, A.V., Prabu, B. and Alagumurthi, N, Effect of size and orientation of a centrally located dent on the ultimate strength of a thin square steel plate under axial compression, International Journal of Steel Structures, Vol. 12(2012)47-58 [12] Jana, P.
And Bhaskar, K ,Analytical solutions for buckling of rectangular plates under non-uniform biaxial compression or uniaxial compression with in-plane lateral restraint , International Journal of Mechanical Sciences, 49(2007)1104-1112