毕业论文----基于光纤系统的流量压力等参数的测量研究

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1、 I 摘 要 流量是工业控制中与生产中的一个重要参数。随着现代工业迅速发展，人们对流量测 量的要求越来越高，促使流量测量方法和测量计有了迅速发展。但测量对象的复杂性，决 定了流量测量仪表在在应用技术上的复杂性。 光纤光栅传感器是一种能测量多种参数的传感器，涡街流量计是 20 世纪 70 年代以来 发展比较迅速的一种流量测量方式，它具有结构简单、量程宽、测量准确等诸多特点，正 日益成为流量测量的主要方式之一，涡街流量计有着广泛的应用范围和发展空间。 本课题将光纤光栅传感理论与涡街流量测量基本理论相结合，设计了一种新型的流量 测量装置。本文主要通过对光纤光栅传感器原理，涡街流量传感器原理分析，设计

2、一整套 的光纤光栅涡街流量传感器，其设计包括光源选择，探测器设计，信号分离滤波器。分析 传感器的测量方法，与其他传感器进行比较，将参数进行分析。 关键词：关键词：光纤，光纤光栅传感器，流量测量，涡街流量传感器。 II Abstract Flow of industrial control and production is one of the important parameters. With the rapid development of modern industry, people on the flow measurement demand is higher and highe

3、r, prompting the flow measurement methods and gauge has been expanding rapidly. But the complexity of measuring objects, decide the flow measurement instruments in the complexity of the application technology. Optical fiber Bragg grating sensor is a kind of various parameters can measure the sensor,

4、 vortex flow meter is since 1970s, one of the most rapid development flow measurement way, it has simple structure, range wide, measurement accuracy many characteristics, such as flow measurement is increasingly becoming one of the main ways, vortex flow meter has a wide range of applications and development space. This subject will fiber grating sensor vortex flow measurement theory and combining the basic theory, design a kind of new type of flow measurement device. This paper mainly through