文献 | 量子荧光|微型光纤光谱仪-ag贵宾会

海底蕴藏丰富的矿产资源、天然气水合物资源和油气资源，其战略地位日益受各国所重视。随着科技的发展，社会的需求，我国在十二五期间提出将建设海底长期科学观测网。海底观测网是海底搭建电能传输线路以及光纤网络连接在海底观测点附近的海底科学观测仪器和陆地基站监控中心，基站监控中心可以实时在线获取海底科学观测仪器采集到的观测数据。基于海底观测网的原位激光拉曼光谱采集系统纺织在海底，是一种连接在海底观测网中的科学观测系统，主要功能是采集海底拉曼光谱，对海底的酸根离子进行原位测量。本文主要研究基于海底观测网的原位激光拉曼远程通讯控制，将整个系统设计为三部分：基站监控中心、传输主干网、海底拉曼光谱采集系统。本文主要研究内容如下。

基于ccd 阵列探测器微小型光谱仪已普遍用于工业过程监测,与光纤传导和激光技术结合构成在线拉曼光谱测量系统,以其检测速度快和无损伤性等优点取代了传统的实验室测量方法。文中以ocean optics 公司的qe65000型光纤光谱仪为例,详细介绍了其特点以及拉曼光谱仪在生化反应工程、石油化工、制药工程和食品生产工业等领域的应用实例。

indium molybdenum oxide (imo) films were deposited onto the polyethersulfone (pes) substrates by ion-beam-assisted evaporation (ibae) deposition at low temperature in this study. the effects of film thickness on their optical and electrical properties were investigated. the results show that the deposited imo films exhibit a preferred orientation of b(222). the electrical resistivity of the deposited film initially reduces then subsequently increases with film thickness. the imo film with the lowest resistivity of 7.61 × 10×4 ohm-cm has been achieved when the film thickness is 120 nm. it exhibits a satisfactory surface roughness rpv of 8.75nm and an average visible transmittance of 78.7%.

anodic oxidation is an electrochemical method for the production of oxide films on metallic substrates. it involves the application of an electrical bias at relatively low currents while the substrate is immersed in an acid bath. the resultant oxide films can be very dense and stable, showing a variety of colours and microstructural characteristics. in the present work, thick films of the anatase and rutile polymorphs of tio2 were formed on high-purity ti foil (50 μm thickness) using sulphuric acid solutions (1.5 m h2so4). the conditions of oxidation involved the application of potentials (5 to 350 v) and current densities (5 to 60 ma.cm-2) for 10 min at room temperature. the films were characterised using a digital photography, laser raman microspectroscopy, and field emission scanning electron microscopy (fesem). the thicknesses of the oxide films on ti were measured using a thin film analyser based on optical spectroscopy principles. the phase formation, colours, thicknesses, and microstructures of the films depended strongly on the applied voltage and current density. at a standard bias of 150 v, single-phase anatase was observed to form on ti at low current density (5 ma.cm-2) but, at higher current densities (up to 60 ma.cm-2), increasing rutile formation was observed.