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Research of X-Ray Electric Cable Eccentricity On-Line Measurement System Based on DSP

Author: CuiPengPeng
Tutor: LiuYanPing
School: Hebei University of Technology
Course: Communication and Information System
Keywords: Cable Eccentricity -Ray detection DSP Visual C
CLC: TM247
Type: Master's thesis
Year: 2010
Downloads: 31
Quote: 0
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Abstract


An important part of the cable line quality monitoring is the cable eccentricity detection, the cable once eccentric will cause a huge waste of raw materials , will also be a direct impact on the performance of the cable . The X-ray detector is widely used in modern industrial production of a non-destructive testing methods , it is of great significance for improving the quality and safety of the cable . This article has been studied using X-ray non-destructive assay cable eccentric real-time detection system . In this paper, power cables eccentric line detection system developed as the main content , the paper first introduces the domestic and international cable eccentricity measurement device Research , focuses on the principles and methods of X-ray detection . On this basis , DSP-based Online Cable Eccentricity Detection System . The detection system mainly consists of three parts of the CCD sensor and driver , the next crew and the host computer . The system uses a CCD sensor for receiving the X -ray transmission image information of the cable cross-section , to provide the driving pulse , in addition to the A / D and data cache logic control done by the CPLD CPLD . The next crew DSP as the core , according to the eccentric cable detection system requirements and the characteristics of DSP , the rational design of the circuit of the DSP core and peripheral hardware circuit to achieve the function of each part of the detection system . Peripheral circuits, including amplification, filter circuit , A / D sampling circuit , the data cache circuit , external expansion data and program memory , communication interface circuit . The amplified sensor output signal , the filtering process after the reception processing by the DSP , the digital signal transmission via the serial communication circuit to the PC machine . The software part of the modular design, mainly composed of three modules , namely: data acquisition module, data processing module and data transmission module . The host computer PC, the software part of the Visual C language . The PC receives the test data sent by the DSP , the analysis and calculation, in order to determine whether the cable eccentric , and finally through the intuitive interface output test results .

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CLC: > Industrial Technology > Electrotechnical > Electrical materials > Conductive materials and their products > Power cable
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