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Study on Stochastic Resonance Technology Based Acoustic Surface Wave Gas Sensor

Author: ChiJiHui
Tutor: FuHua
School: Liaoning Technical University
Course: Control Theory and Control Engineering
Keywords: gas surface acoustic wave SAW gas sensor stochastic resonance CAN bus
CLC: TP212
Type: Master's thesis
Year: 2011
Downloads: 55
Quote: 0
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Abstract


In this paper, the intelligence SAW gas sensor as a research object, and based on the analysis of status of the domestic coal mine safety and research status quo on domestic and overseas for gas sensor. Aiming at large measurand,more noises, random dynamic and Other features, this paper proposed a intelligence SAW gas sensor for monitoring mine safety.Firstly, this paper presented the meaning of study, feasibility and innovation of SAW gas sensor. Besides it represented the theoretical principle of the intelligence SAW gas sensor. In this part introduces the core of intelligence SAW gas sensor——the theory and implementation method by using surface acoustic wave to monitor gas. Secondly, in order to minimize the impact of noise what generated in the process gas monitoring, the principle of stochastic resonance was applied to the mine safety monitoring. And the structure of intelligence SAW gas sensor was described in the paper. It focused on studying algorithm model of intelligence SAW gas sensor, and the data and simulation results are given by simulating the algorithm. Thirdly, using CAN bus technology to design the communication unit of intelligence SAW gas sensor. Finally, designing study the whole structure of gas monitoring system. The method what is proposed in this paper dramatically reduced the effects of underground noise, and got more information about the true gas concentration to guarantee coal mine production safety.

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