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Research and Development of an Automatic Control System for a Lever Type Force Standard Machine Based on Virtual Instrument Technology

Author: YangWenAn
Tutor: YouYouPeng
School: Nanjing University of Aeronautics and Astronautics
Course: Mechanical Manufacturing and Automation
Keywords: Force standard machine Force value measurement LabVIEW Virtual Instrument Technology Control system
CLC: TH87
Type: Master's thesis
Year: 2008
Downloads: 61
Quote: 0
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Abstract


Force standard machine measurement testing departments must force value measurement equipment plays an integral role for the country's economic , scientific measurement and national defense construction . The rapid development of modern industry and technology , increasing demands on accuracy , stability , and test the efficiency of the force standard machine . In this paper, a low degree of automation of the existing leveraged force standard machine , poor reliability, easy to maneuver and lack proposed an automatic control system based on virtual instrument technology . The main results are as follows : 1 . According to the principle of virtual control system design , through the analysis of the force standard machine control system structure, function , and performance requirements proposed a leveraged force standard machine control program based on virtual instrument technology . . Force standard machine control system 's hardware platform ; software , proposed and implemented by a detailed analysis of multitasking mechanism the LabVEIW environment more platform-level and task-level secondary force standard machine control system based on LabVIEW task scheduling strategy , and as a basis for the design development of visual control , visualize the function of force standard machine control system software . The combination of long-term force standard machine test practice , fault dictionary accident alarm and fault diagnosis in force standard machine control system is proposed and implemented effectively protect the reliability of the system . Force Standard Machine to improve test performance through the leveraged force standard machine measurement principle theoretical modeling and analysis , the proposed leverage the center of gravity and reduce the friction lever movement to improve the sensitivity limit of the force standard machine ; analysis of the the leveraged force standard machines force error sources , and reduce the force measurement error measures . The application results show that the control system not only can realize the force value measurement and data processing automation , reduce the labor intensity of the operator to improve test efficiency , but also to eliminate the impact of human factors on the measurement accuracy , improve metrological verification of the device can be repeated , accuracy , and reliability .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Material testing machine and test equipment
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