本文選題：光纖光柵傳感 + F-P濾波器�。� 參考：《北京交通大學(xué)》2015年碩士論文

【摘要】：傳感技術(shù)是當(dāng)今世界高新技術(shù)研究熱點(diǎn)之一,更是當(dāng)今科學(xué)技術(shù)發(fā)展的重要標(biāo)志。傳感技術(shù)與計(jì)算機(jī)技術(shù)、通信技術(shù)組成了信息產(chǎn)業(yè)的三大支柱。 隨著光纖光柵傳感技術(shù)的快速發(fā)展,光纖光柵傳感技術(shù)在土木工程、航空航天、醫(yī)學(xué)、電力工業(yè)、石化工業(yè)等領(lǐng)域上得到了廣泛的應(yīng)用。光纖光柵傳感技術(shù)不僅具有低插入損耗、窄反射帶寬、耐高溫、耐腐蝕、抗電磁干擾的優(yōu)點(diǎn),而且利用多樣的復(fù)用方式,易于組建大容量分布式傳感網(wǎng)絡(luò),大容量分布式的傳感系統(tǒng)對(duì)光纖光柵解調(diào)系統(tǒng)的靈敏度和穩(wěn)定性提出了很高的要求。 本論文依托北京交通大學(xué)與南車青島四方機(jī)車車輛股份有限公司合作項(xiàng)目《光纖光柵傳感檢測(cè)系統(tǒng)》。闡述了光纖光柵傳感的基本原理,重點(diǎn)對(duì)光纖光柵傳感解調(diào)系統(tǒng)做了詳細(xì)的研究,包括五種常用的解調(diào)方案的對(duì)比研究,光源技術(shù)、可調(diào)F-P濾波器、標(biāo)準(zhǔn)具等核心部件的研究。在此基礎(chǔ)上,提出并設(shè)計(jì)了基于可調(diào)諧F-P濾波器的雙通道光纖光柵傳感解調(diào)方案,分析了方案的解調(diào)原理。分別對(duì)系統(tǒng)選用的ASE寬帶光源、可調(diào)諧F-P濾波器以及光電接收電路進(jìn)行了介紹。最后對(duì)基于可調(diào)諧F-P濾波器的雙通道光纖光柵傳感解調(diào)系統(tǒng)在鐵路機(jī)車上進(jìn)行了對(duì)溫度的測(cè)試,測(cè)試選用了自行設(shè)計(jì)的雙端表面貼裝式光纖光柵溫度傳感器,傳感器便于安裝,工作穩(wěn)定。測(cè)試結(jié)果證明了基于可調(diào)諧F-P濾波器的雙通道解調(diào)系統(tǒng)具有較高的靈敏度,其波長靈敏度為1pm,對(duì)溫度的解調(diào)靈敏度達(dá)0.1℃,實(shí)現(xiàn)了預(yù)期目標(biāo)。
[Abstract]:Sensing technology is one of the research hotspots in the world, and it is also an important symbol of the development of science and technology. Sensing technology, computer technology and communication technology constitute the three pillars of the information industry. With the rapid development of fiber Bragg grating sensing technology, fiber grating sensing technology has been widely used in civil engineering, aerospace, medicine, power industry, petrochemical industry and other fields. Fiber Bragg grating sensing technology not only has the advantages of low insertion loss, narrow reflection bandwidth, high temperature resistance, corrosion resistance and electromagnetic interference resistance, but also easy to set up a large capacity distributed sensing network by using various multiplexing methods. The sensitivity and stability of fiber grating demodulation system are required by the large capacity distributed sensing system. This paper relies on Beijing Jiaotong University and South China Railway Qingdao Sifang Locomotive & Rolling Stock Co., Ltd. In this paper, the basic principle of fiber Bragg grating (FBG) sensing and demodulation system is introduced, including five common demodulation schemes, light source technology, tunable F-P filter, standard device and so on. On this basis, the demodulation scheme of dual-channel fiber Bragg grating sensor based on tunable F-P filter is proposed and designed, and the demodulation principle of the scheme is analyzed. The ASE broadband light source, tunable F-P filter and photoelectric receiving circuit are introduced respectively. Finally, the temperature of the dual-channel fiber grating sensor demodulation system based on tunable F-P filter is tested on the railway locomotive. The self-designed double-end surface mounted fiber Bragg grating temperature sensor is selected, which is easy to install. The work is stable. The test results show that the dual-channel demodulation system based on tunable F-P filter has high sensitivity, its wavelength sensitivity is 1pmand the temperature demodulation sensitivity is 0.1 鈩，

本文編號(hào)：2096239