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Research on Portable Digital Force Measuring System Based on Quartz Resonance Force Sensor
Author: ZhangJingWen
Tutor: LiangDaKai
School: Nanjing University of Aeronautics and Astronautics
Course: Measuring Technology and Instruments
Keywords: Quartz resonator Force - frequency characteristics Force Sensor SCM Portable design
CLC: TH82
Type: Master's thesis
Year: 2005
Downloads: 218
Quote: 0
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Abstract
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Quartz resonator force sensor is a digital sensor that began in recent years to the development of a practical direction . The purpose of this study is to design a portable quartz resonator force sensor - based force measurement system . Study of non- symmetric AT-cut quartz resonator diameter distributed load complete disc force - frequency characteristics , in order to provide the design basis is closer to the actual situation , combined with the sensor craftsmanship , design precision quartz resonator force sensor . On this basis , the design of the loading mechanism , as the central control unit and the microcontroller , the hardware and software design . Multi- cycle synchronization method of frequency measurement , digital filtering technology , a high-precision , high stability and fast response force sensing data , the design is simple , reliable work . This paper presents an application of the quartz resonator force sensor output frequency sampling difference score method to eliminate the temperature drift caused by the sensing error , do not use any other temperature compensation components and circuits . Analysis of the differential method to inhibit the principle of drift noise processing algorithms and application in the quartz resonator force sensor . Loading mechanism and hardware design , the agency and circuit size , low-power design measures to minimize the formation of a more practical portable system .
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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Mechanical quantity measuring instruments
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