消偏振度 的英文怎麼說
中文拼音 [xiāopiānzhèndù]
消偏振度
英文
degree of depolarization-
Abstract : the measurement method of the polarization grade for the source and depolarization and the concept of the polarization error for the illuminance meter are described
文摘:介紹了光源偏振度的測量和消偏振的方法以及照度計偏振誤差的概念。This paper designs an optical system based on above to measure the small angle of the laser beam. a non - polarized beam splitter ( npbs ) is used to split the incident beam into two branches, and a rhombic prism agglutinated by two right - angle prisms is placed to realize total internal reflection twice in each branch. it not only improves the measurement sensitivity and linearity, but also increases antinoise ability by the differential optics
本文正是基於這一原理設計了測量光束微小偏轉角的光路系統，用消偏振分光棱鏡將入射光分為兩路，並在兩路分別用兩個直角棱鏡組成的斜方棱鏡來實現兩次全內反射，不但提高了測量靈敏度和線性，還利用差分光路的特點提高了抗干擾能力。Some conclusions about the length and the splice angle of the depolarizer, the spectrum of the light source and the extinction ratio of the polarizer are obtained. associated with the polarization in the sensing coil and the principle of the pmd analyzer, one method to design the length of the lyot depolarizer has been put forward
首先，本文分析了lyot消偏器對完全偏振光與非完全偏振光的消偏作用，由此得出了關于lyot消偏器的長度和結合角、光源光譜以及與消偏器配合的起偏器消光比的一些結論。Because mz interferometric optical fiber gyroscope has bigger nonreciprocal phase, the system thermal stability, polarization noise and the error caused by the fluctuation of light source is particular analysed, some effective methods is proposed such as : using the " quasi - white - light " interferometry and the fiber polish technology accurately to control the fiber length, using depolarization light to minish the polarization error, and using temperature control, optical power control and depolarizer to stabilize the output of the light source
結合mz干涉式光纖陀螺的存在較大非互易相移的特點，著重從其溫度穩定性、偏振噪聲以及光源波動引起的誤差三個方面分析了抑制噪聲、提高檢測精度的方法，提出了：採用「準白光」干涉測量法結合光纖研磨技術精確控制光纖長度差的辦法；採用非偏振光源抑制偏振噪聲的方法；採用溫度控制、功率控制以及消偏器實現穩定化陀螺光源的方法。The thickness, extinction and reflection coefficients of the plct ( x ) thin films with variant layers were measured by ellipsometer
運用橢圓偏振儀測定了不同層數的薄膜厚度、消光系數、折射率。Simulation results show that the fuzzy sliding mode system ulteriorly increases the speed to the sliding plane, and that the system errors are improved ulteriorly and the control precision is advanced when avoiding the chattering phenomenon that is inherent to sliding mode variable structure systems
模擬結果表明，設計的模糊滑模系統進一步提高了到達滑動面的速度，在消除變結構控制系統固有的抖振的同時進一步改善了系統偏差，提高了控制精度。The best process for high quality tio _ ( 2 ) thin film deposited on k9 glass by reb is studied by using orthogonal test method, the se results indicate that the best process for tio _ ( 2 ) thin film deposition is the substrate temperature of 300, the total gas press in the chamber of 2 x 10 ~ 2pa and the deposition rate of 0. 2 nm - s - 1, of which the substrate temperature has influence on the optical properties of the deposited films notably
文中首先以tio _ 2薄膜的折射率和消光系數為研究對象，採用l9正交試驗法研究了在k9玻璃上制備高光學質量tio _ 2薄膜的最佳工藝條件。橢圓偏振儀的測試結果表明，制備tio _ 2薄膜的最佳工藝條件為：基片溫度300 ，工作真空2 10 ~ （ - 2 ） pa ，沉積速率0 . 2nm ? s ~ （ - 1 ） ，其中基片溫度對薄膜光學常數的影響最大，該結果具有較好的可重現性。分享友人