本文關(guān)鍵詞：海水中不同鹽分水溶液對(duì)光的透射特性研究　出處：《河南師范大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 海洋光學(xué) 激光 無(wú)機(jī)鹽 透射率 光譜

【摘要】：海洋占地球表面的70%左右,海洋資源的開(kāi)發(fā)利用對(duì)人類的生存和發(fā)展會(huì)產(chǎn)生巨大的影響,中國(guó)的海岸線約20000公里,海洋經(jīng)濟(jì)的發(fā)展已經(jīng)成為我國(guó)國(guó)民經(jīng)濟(jì)的一部分,為了使海洋中豐富的資源能夠被充分開(kāi)發(fā)利用,很早人們就已經(jīng)開(kāi)始嘗試各種方法進(jìn)行水下探測(cè)和通信等活動(dòng),到目前為止海洋事業(yè)已經(jīng)走向以高科技探測(cè)為基礎(chǔ)的全面開(kāi)發(fā)利用階段。因激光具備亮度高、方向性好、單色性好和相干性好的特征,所以水下通訊及探測(cè)時(shí)所用的光源主要以激光為主。海水是一個(gè)包含多組分的繁雜體系,包含各種有機(jī)的、無(wú)機(jī)的、溶解的和懸浮的物質(zhì),這些成分的存在會(huì)影響激光在海水中傳播時(shí)的透射率,因此對(duì)海水中不同鹽分水溶液對(duì)光的透射特性研究對(duì)激光水下通信、激光探潛等領(lǐng)域研究具有一定的指導(dǎo)意義和參考價(jià)值。本文從海水中溶解物質(zhì)的主要成分對(duì)激光的影響出發(fā)來(lái)進(jìn)行研究的,論文實(shí)驗(yàn)研究了五種鹽分(即NaCl、MgCl2、KCl、NaHCO3、和MgSO4)水溶液的透射特性,實(shí)驗(yàn)用紫外-可見(jiàn)-紅外分光光度計(jì),分別測(cè)量各溶解物質(zhì)水溶液的透射光譜,并對(duì)透射光譜后進(jìn)行了討論和分析。介紹了海水的主要成分和影響海水的光學(xué)性質(zhì)的一些因素,理論分析了激光在海水中傳播過(guò)程中的吸收特性和散射特性。實(shí)驗(yàn)測(cè)量了溶液濃度與電導(dǎo)率的關(guān)系,并利用三種不同波長(zhǎng)的激光分別研究了不同鹽分水溶液的透射或吸收特性,給出了不同鹽分水溶液對(duì)激光的透射曲線,并得出了相應(yīng)的擬合經(jīng)驗(yàn)公式,并通過(guò)作圖分析得出在所配備的溶液濃度范圍內(nèi)透射率隨濃度減小而增大的結(jié)論。相同傳輸距離、不同濃度水溶液對(duì)光的透射特性影響不同,希望研究結(jié)果能對(duì)以后激光水下透射特性的研究提供參考和依據(jù)。
[Abstract]:The ocean accounts for about 70% of the earth's surface. The exploitation and utilization of marine resources will have a great impact on the survival and development of mankind. The coastline of China is about 20000 kilometers. The development of marine economy has become a part of our national economy, in order to make the rich resources in the ocean can be fully exploited and utilized. People have been trying a variety of methods to carry out underwater exploration and communication activities. Up to now, the marine industry has moved to the stage of comprehensive development and utilization based on high-tech exploration, because of the high brightness of laser. Good directionality, good monochromatic and good coherence, so the underwater communication and detection of the light source mainly used by the laser. Seawater is a multicomponent complex system, including a variety of organic, inorganic. The existence of these components will affect the transmittance of laser propagating in seawater, so the transmission characteristics of different salt aqueous solutions to light in seawater are studied. The research of laser submersible exploration and other fields has certain guiding significance and reference value. In this paper, the effects of the main components of dissolved substances in seawater on laser are studied. The transmission characteristics of aqueous solutions of five salts (NaCl-MgCl2KCl-KCl-KCl-NaHCO3 and MgSO4) have been experimentally studied. The UV-Vis infrared spectrophotometer has been used in the experiment. The transmission spectra of aqueous solutions of dissolved substances were measured respectively. After the transmission spectra were discussed and analyzed, the main components of seawater and some factors affecting the optical properties of seawater were introduced. The absorption and scattering characteristics of laser propagating in seawater are analyzed theoretically, and the relationship between solution concentration and conductivity is measured experimentally. The transmission and absorption characteristics of different salt aqueous solutions are studied by using three different wavelengths of lasers. The transmission curves of different salt aqueous solutions to the laser are given, and the corresponding fitting empirical formulas are obtained. It is concluded that the transmittance increases with the decrease of concentration in the range of concentration of the solution. At the same transport distance, different concentrations of aqueous solutions have different effects on the transmission characteristics of light. It is hoped that the results can provide a reference and basis for the study of the underwater transmission characteristics of laser in the future.
【學(xué)位授予單位】：河南師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P733.33

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本文編號(hào)：1440568