背角量角器 的英文怎麼說
中文拼音 [bēijiǎoliángjiǎoqì]
背角量角器
英文
back angle quadrant-
And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed
研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。A reasonable position of driving nozzle helps to achieve the maximum material flow that also depends on other parameters such as backpressure, properties of conveyed material and driving gas. it is observed that, an increase of convergent section angle is harmful to the pneumatic conveying system, and also influences on the mass flow rate of conveyed material, the distribution of static pressures in injector and the pressure drops of conveying pipe. in addition, within a reasonable scope of air mass rate, increasing the driving jet velocity is more advantageous than enlarging the dimension of driving nozzle
試驗研究發現，氣體噴嘴位置對氣固噴射器的輸送能力影響最大，氣體噴嘴存在某一最佳位置，而這一最佳位置與背壓、輸送物料特性和輸送風特性相關聯；氣固噴射器的收縮角對其輸送能力、內部靜壓分佈和輸送管阻力特性均有適量影響，收縮角增大對整個輸送系統均不利；在適當的輸送風范圍內，提高氣體噴嘴出口速度比擴大氣體噴嘴尺寸更為有利，但氣體噴嘴出口速度過高會增加氣固噴射器和輸送管內的能量損耗，給輸送帶來不利的影響；系統背壓與氣固噴射器的氣體噴嘴出口速度的選取有關。Back angle quadrant
背角量角器2. using the simulation method and a lorentzian oscillator model, the influence of the deviation in experimental parameters, including the thickness of samples, the incident angle, the misalignment of the time delay line, the background noise and the laser noise is analyzed
二、首次利用模擬thz輻射脈沖入射到共振吸收的樣品上的方法分析了厚度、角度、平移臺錯位、背景噪聲及激光器噪聲等對于光學常數測量產生的影響。The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics
採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。It analyses the causes to bright image movement, studies principle to compensate image movement, conforms project to compensate image movement, and designs framework to compensate image movement in the article ; to analyze and design configuration of the scanning mirror, to select matters of mirror and its support structures on the principle of consistent line expansion coefficient ; to ascertain type of moment electromotor by most rotating angle speed and most rotating moment which are required by loads in the period to take pictures, as well as by figuration size of electromotor ; to design retarder according as the electromotor parameters ; to design and optimize lightweighted mirror shapes, because the mirror is key part ; to design flexure support structure, to analyze static and dynamic characteristics of the support structure by name of patran program for validating desig n rationality ; to study function of the scanning mirror electric control system ; to test precision of the system, the results indicate the rationality of design of the scanning mirror system
本文通過分析像移產生原因、研究像移補償原理，確定像移補償方案，並根據像移補償原理設計補償機構；分析與設計掃描反射鏡系統結構，根據材料線膨脹系數一致原則，選擇反射鏡及其背部支撐的材料；由掃描反射鏡在擺掃周期內的最大擺掃角速度確定力矩電機的額定轉速，根據負載力矩確定電機的額定轉距，綜合電機外型尺寸等因素，確定執行元件? ?電機的型號；根據所選電機的參數指標，設計1 ： 6速比的減速器；利用patran軟體對掃描反射鏡系統中的關鍵件? ?反射鏡進行輕量化設計與優化；設計反射鏡柔性支撐結構，並通過軟體分析支撐結構的力學特性，驗證反射鏡柔性支撐結構設計的合理性；從原理上研究掃描反射鏡控制系統功能；進行系統精度測試，測試結果表明掃描反射鏡系統設計的合理性。In this paper, under the application background of oil company requirement, through to analyze and study the character of distributed object technology and software reused technology and the component technology, we build a oilmis application framework based on corba. then we bat around the design and development of the application framework, and provide one kind of methods for developing software systems by component. in succession, we analyze the character of the application framework and show it can be a valid project for oil field
本文以油庫信息管理系統為應用背景，通過對分散式對象技術、軟體復用技術、構件技術的分析和研究，結合油庫信息管理系統的應用特點，建立了一個基於corba構件服務器的oilmis應用程序框架；接著從框架的設計、開發等方面進行了詳細的討論，給出了基於構件的框架的一般設計開發方法；然後從體系結構的角度對oilmis框架模型進行了分析，討論了基於此框架模型的系統開發方法，說明此種框架結構能夠作為油庫信息領域的一個有效解決方案；最後通過儲罐自動計量子系統中一個業務構件實現的實例，演示了oilmis中構件的實現方法。This report is divided into four parts and first part is researching background of subject developing state both inside and outside country and is also briefly introduced the aim of study ; the second part is analyzed and discussed the basic principle and detailed explained the mechanism of piezoresistive accelerometer and magnetic resistive sensor used in attitude angular measurement ; the third part is introduced the implementary process of design scheme ; the four part is emphasis reported the key technology and the concrete resolvents
本論文分為四大部分，第一部分就課題的研製背景、當前國內外發展狀況和研製的目的和意義加以簡單的介紹；第二部分就課題實現的基本原理進行了分析和討論，並較詳細地論述了壓阻式加速度計和磁阻傳感器在姿態角方位角測量中的機理；第三部分介紹設計方案的具體實施過程；第四部分著重介紹了課題採用的關鍵技術和具體的解決措施。The thesis is composed of 9 parts : the background, significance, main topics and innovations in the thesis are introduced in chapter 1 ; in chapter 2, the main function and performance of interface circuits are described from the view of system by using the example of gigabit ethernet ' s transceiver ; the transmission media ' s frequency characteristics and model are analyzed for the high - speed data transmission system in chapter 3 ; the line driver is presented in chapter 4 ; the equalization principles for high - speed data transmission system are introduced in chapter 5 ; a novel adaptive equalizer for 1000base - cx transceiver is presented in chapter 6 ; in chapter 7, a fixed equalizer for 2. 5gbps transceiver is described ; in chapter 8, layout design and measured results are discussed ; at last, the conclusions are drawn in chapter 9. during period of finishing the thesis, i read lots of literatures about the interface circuits in high - speed data transmission system, studied their principles and design techniques, and designed : 1 、 the line driver for 2. 5gbps baseband copper cable transceiver ; 2 、 the fixed equalizer for 2. 5gbps baseband copper cable transceiver ; 3 、 the fixed equalizer for 1. 5gbps sata ( serial at attachment ) transceiver ; 4 、 an adaptive equalizer for 1000base - cx transceiver
論文由9部分組成：在第一章引言中介紹了論文的背景、意義、國內外研究現狀，以及論文的主要內容和創新；第二章以千兆位以太網為例，從系統的角度介紹了高速數據傳輸系統介面電路的主要功能和性能指標；第三章分析了高速數據傳輸系統的傳輸介質的頻率特性和模型；第四章描述了線驅動器的設計原理及其電路實現；第五章描述了高速數據傳輸系統的均衡原理；第六章描述了適用於1 . 25gbps基帶銅纜收發器系統的自適應均衡器的設計原理和電路實現；第七章描述了適用於2 . 5gbps基帶銅纜收發器系統和1 . 5gbps串列硬盤介面（ sata ）收發器系統的固定均衡器的設計原理及其電路實現；在第八章中分析了電路的版圖設計及晶元測試結果；最後，第九章總結了全文。在完成論文期間，查閱了大量的有關高速數據傳輸系統介面電路方面的文獻，較系統地學習了線驅動器、傳輸線和均衡器等方面的理論知識和電路設計原理，設計了用於： （ 1 ） 2 . 5gbps基帶銅纜收發器系統的線驅動器； （ 2 ） 2 . 5gbps基帶銅纜收發器系統的固定均衡器； （ 3 ） 1 . 5gbpssata系統的固定均衡器； （ 4 ） 1 . 25gbps基帶銅纜收發器系統的自適應均衡器。分享友人