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Design a Wireless Data Collection System for Smart Quartz Resonance Force Sensor

Author: LiJie
Tutor: JiangYinPing
School: Tianjin University
Course: Detection Technology and Automation
Keywords: Force Sensor Quartz resonator MSP430 Wireless Data Acquisition
CLC: TP212.6
Type: Master's thesis
Year: 2007
Downloads: 121
Quote: 0
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Abstract


Quartz Resonance Force Sensor is a utility in recent years began to develop in the direction of the digital sensor . Purpose of this study is to design a quartz resonator based Force Sensor wireless data acquisition system for large-scale construction of steel structures by force detection . First, we verify the disk type nonholonomic symmetric AT-cut quartz resonator size distribution by the load on the force - frequency characteristics, combined with test results and production of a new sensor technology , the design of a high-precision quartz resonator force Sensor . On this basis , the design of the corresponding loading mechanism , and a microcontroller as the central control unit for the hardware and software design . In the loading mechanism and hardware design, minimize the use of the institutions and the circuit size , low power design and other measures ; while in software, using a multi- cycle synchronization method to measure the frequency , digital filtering techniques , the design is simple, reliable , formation of a more practical and intelligent sensor systems. Secondly , this paper presents an application of quartz resonator force sensor output frequency sampling their differential value to eliminate temperature drift errors caused by sensing method does not require any additional temperature compensation components and circuits. This paper analyzes the differential method suppresses noise drift theory , and then put forward the corresponding processing algorithms , and in the quartz resonator force-sensitive sensors to be applied . Finally, smart sensors for wireless transmission problem, a company based on TI MSP430F123 microcontroller and wireless transceiver chip TRF6900 wireless sensor data acquisition design programs to create a smart sensor wireless data acquisition system , and gives the hardware connection and software design process .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Intelligent sensors
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