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Large Longitudinal deflection detection system

Author: MengXianChang
Tutor: ZhaoJun
School: Yanshan University
Course: Materials Processing Engineering
Keywords: Longitudinal Deflection detector Laser displacement sensor Virtual Instrument LabVIEW
CLC: TG83
Type: Master's thesis
Year: 2011
Downloads: 41
Quote: 1
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Abstract


Longitudinal straightness is a large main form and position errors , directly affect the pipeline installation. To achieve large-scale Longitudinal cornering straightening, we must first detect the axial direction of pipe deflection of each point . How fast and accurate measurement of pipe deflection is an urgent need to solve the measurement problem . Deflection measurements can also be a conventional method using an optical method , compared to the optical method has the following advantages : Non-contact , high resolution, fast response and more accurate. This deflection detector in understanding the current situation at home and abroad on the basis of the detection of large deflection principle Longitudinal studies , analyzes and compares the variety testing program , conducted on the basis of the overall structural design of the measuring device . Longitudinal combined with large size and shape of features , selected optoNCDT 1302 reflected laser displacement sensor as a sensor element . Establish a corresponding mathematical model , the completion of the measurement system design and structural design. In software development platform virtual instrument as a starting point , the concept of virtual instruments , the typical structure and the production process are described and discussed LabVIEW virtual instrument software platform features , characteristics and methods of use are introduced. Based virtual instrument design principles and methods of detection system uses a modular design. Longitudinal elaborated large deflection detection software system main function module design and implementation. Different deflection φ76 × 800mm Longitudinal deflection detection experiments conducted . The stability of the system through experiments , repeated experiment , CMM measuring comparative experiments to verify a large-scale Longitudinal deflection detection system feasibility and reliability.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Tolerance techniques to measure and mechanical measuring instruments > Shaped deviation measurement meter
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