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Research on Vibration Viscometer

Author: HeZheng
Tutor: LiChangZuo
School: Huazhong University of Science and Technology
Course: Detection Technology and Automation
Keywords: vibration viscosity steady-state model control algorithm search approximati
CLC: U414
Type: Master's thesis
Year: 2011
Downloads: 70
Quote: 0
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Abstract


Road asphalt is currently the largest use of asphalt materials. In the process of road construction, the viscosity of asphalt is too high or too low will affect the quality of road construction, so how to accurately measure the viscosity of asphalt in real-time is extremely important. Currently there are many ways for viscosity measurement, and mainly use the mechanical measurement in industrial production. Vibration has a good prospect for industrial application due to many factors such as its high precision, fast response, and can adapt to very harsh environmental.This thesis has research on a kind of vibration viscometer based on the principle of vibration measurement, because the domestic has currently no research in this area, little information can refer to, so this research is a process of exploration. In the analysis based on its working principle, this paper firstly established a system of dynamic equations; analyzed and calculated the sensor’s structural parameters and build a steady-state model of the system; This viscometer is closed-loop instrumentation, the control algorithm use the search approximation algorithm can effectively eliminate the vibration caused by PID algorithm and is conducive to the rapid response for the system. The thesis has research on simulation for the control algorithm and the results show that the system is stable. Then produced a prototype and do experimental research on it, and analyze its sensitivity, the corresponding experimental results show the direction of further improvement for the structural parameters t of the sensor.After a few structural improvements, the sensitivity of the vibration viscometer sensor is greatly improved, and soon will be able to meet the measurement needs, experimental results show that vibration viscometer has a very broad application prospects.

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CLC: > Transportation > Road transport > Road works > Road construction materials
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