本文選題：光纖水聽聲吶 + 干涉��； 參考：《長(zhǎng)春理工大學(xué)》2014年碩士論文

【摘要】：光纖水聽聲吶由于其探測(cè)靈敏度高,動(dòng)態(tài)范圍大,穩(wěn)定性極高,耐高溫,抗腐蝕,體積小,重量輕,傳輸距離遠(yuǎn),可利用光纖傳感復(fù)用技術(shù),構(gòu)成大面積和大規(guī)模陣列等優(yōu)勢(shì),在水聽傳感領(lǐng)域?qū)⒂兄豢商娲淖饔?但是光纖水聽器的發(fā)展明顯落后于壓電水聽器,因此在應(yīng)用上受到了很大的限制。目前,我國(guó)的光纖水聽器還處于理論和實(shí)驗(yàn)階段,這就導(dǎo)致要獲得穩(wěn)定的、高靈敏度的光纖水聽器更加困難。本論文主要是對(duì)光纖水聽器的光學(xué)系統(tǒng)進(jìn)行研究。分別對(duì)光纖干涉水聽傳感原理和光纖光柵水聽傳感原理進(jìn)行了詳細(xì)的分析和研究,同時(shí)也對(duì)光纖水聽器的主要關(guān)鍵技術(shù)進(jìn)行了介紹。論文中分別設(shè)計(jì)和搭建了三套光纖水聽聲吶傳感實(shí)驗(yàn)系統(tǒng),其中包括基于3×3耦合器的Fox-Smith干涉式光纖水聽傳感系統(tǒng)、光纖FBG匹配光柵解調(diào)光纖水聽傳感系統(tǒng)和光纖FBG光柵非平衡M-Z解調(diào)光纖水聽傳感系統(tǒng),然后利用上述實(shí)驗(yàn)系統(tǒng)分別進(jìn)行水中的擾動(dòng)實(shí)驗(yàn),并對(duì)得到的實(shí)驗(yàn)現(xiàn)象進(jìn)行對(duì)比分析,選取了適于本實(shí)驗(yàn)系統(tǒng)的傳感解調(diào)光學(xué)系統(tǒng)。
[Abstract]:Because of its high detection sensitivity, large dynamic range, high stability, high temperature resistance, corrosion resistance, small volume, light weight, long transmission distance, fiber optic sensing multiplexing technology can be used to form large area and large scale array. It will play an irreplaceable role in the field of water sensing, but the development of fiber-optic hydrophone lags behind that of piezoelectric hydrophone, so it is limited in application. At present, the fiber-optic hydrophone in our country is still in the theoretical and experimental stage, which makes it more difficult to obtain a stable, high-sensitivity fiber-optic hydrophone. In this thesis, the optical system of fiber-optic hydrophone is studied. The principle of fiber-optic interferometric sensing and the principle of fiber Bragg grating (FBG) sensing are analyzed and studied in detail, and the main key technologies of fiber-optic hydrophone are also introduced. In this paper, three sets of fiber optic sonar sensing systems are designed and built, including the Fox-Smith interferometric sensing system based on 3 脳 3 coupler. The fiber FBG matching grating demodulates the fiber optic sound sensing system and the fiber FBG grating non-balanced M-Z demodulation optical fiber sound sensing system. Then the disturbance experiments in water are carried out using the above experimental system, and the experimental phenomena obtained are compared and analyzed. The sensing demodulation optical system suitable for this experiment system is selected.
【學(xué)位授予單位】：長(zhǎng)春理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TB565.1

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本文編號(hào)：1834518