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Study on a New Dual-function Angle Measuring Instrument

Author: XuXiaoQing
Tutor: WangBaoGuang
School: Tianjin University
Course: Measuring Technology and Instruments
Keywords: Small angle measurement Large angle measurement LVDT MEMS Curve fitting
CLC: TH712
Type: Master's thesis
Year: 2007
Downloads: 190
Quote: 0
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Abstract


Angle measurement plays an important role in the geometric measurement . With the improvement of the technical requirements of the industrial system of angle measurement , in many applications the scene , the the existing angle measurement instrument measuring range, accuracy and limitations of size and power consumption has gradually can not meet the measurement requirements. The subject for measurement problems in machine tools, aircraft and ships and other manufacturing fields slight angle detection angle as well as rail and military navigation systems , in-depth study of angle measurement methods and instruments ; designed a new dual-function angle measurement system can be applied to both small angle and wide-angle measurement . The system uses two different occasions for the sensor output signal processing and transmission , thus simplifying the overall design of the measuring system , to increase the scope of its use with a master circuit . The main content of the paper is as follows : 1. Angular measurements were performed extensive research and in-depth research , proposed a slight angle measurement and angle measurement integrated into the model of the same measurement system to achieve the dual-function , modular design. Were slight angle and the angle difference in the measurement range , the resolution and other aspects of the sensor selection of geometric quantities converted into electricity , the LVDT signal processing chip for slight angle measurement , the use of a new type of MEMS sensor measurement chip for large angle measurements. 3 double leaf spring precision micro - displacement mechanical structural design of the small angle measuring instruments , a unified set of measurement and control circuit and system design , data acquisition, signal processing, signal transmission and display . Small angle measurement non-linear relationship between the sensor output value and the measured angle fitting method to study and improve the linearity of the measurement system , and high angle measured linear process basis . On the basis of local instrument displays to meet the needs of computer data processing applications in the computer interface with the host computer software design . 6. Slight angle measurement system , a series of experiments , including linearity, stability and repeatability of experiments , and the experimental results were analyzed processing .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Measuring instruments > Angle measuring instruments
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