細光柵 的英文怎麼說
中文拼音 [xìguāngzhà]
細光柵
英文
fine grating-
The main computer is programmed under windows, while the assistant computer is programmed under dos. the last, based on the idea of module - structure, the software of the testing system are designed, thus this software system is compatible and transplantable to design again. the experiment of measuring principle is taken : take the xy flat of lathe as the parallel - pole device and adjust the angle of sensor, the rotating - probe can test the felloe mould in scanning way
藉助虛擬儀器的思想,對測控系統進行了設計:採用光柵尺、光電編碼器測量可動部件的運動量,解析度高、誤差小;採用細分驅動的步進電機裝置,控制性能好;系統實施環境溫度的檢測、補償,提高了檢測精度;基於兩級微機組建測控系統:主機為人機界面,採用windows編程,從機用dos編程,實時性好;軟體設計採用兼容性和移植性好的模塊式結構,便於二次開發。The design of dgwfs and the quadratically distorted diffraction gratings is introduced firstly in chapter 1. secondly, based on the prevenient algorithms, the phase retrieval for the novel dgwcs is discussed by comparison, also more analysis is made by examples in chapter 2
第二章在總結、研究和改進前人理論方法的基礎上,總結了適合光柵型波前曲率傳感器相位恢復的三種演算法,並作了詳細的理論推導、分析和舉例說明,完善了光柵波前曲率傳感器的相位恢復理論。In the part of software design, the initialization of ethernet controller and the process in which ethernet packets are received and sent are studied thoroughly. after analyzing the embedded tcp / ip protocols, the interface card software which can control the whole card, receive and send ethernet packets is completed. lastly, the concept of windows network application based on winsock is presented
在介面卡軟體設計中,重點研究了以太網控制器的初始化和以太網數據包的收發過程,詳細分析了嵌入式tcp / ip協議的實現方法,並編寫了光柵傳感器介面卡軟體,完成了介面卡的整體控制和網路數據的收發。In the beginning, the working principle, testing and data processing system of pdl micro - control material test machine is introduced ; then more attention is paid to the hardware system which is composed of high precision raster linear displacement sensor, high precision force sensor, the digital displaying sets, the interface equipments and the controlling circuits etc to perform the data collection and ensure the testing precision of the whole system
論文首先介紹了pdl材料拉伸試驗機的工作原理、測試及數據處理系統;接著詳細介紹了由高精度光柵線位移傳感器和壓力傳感器、數顯裝置、介面裝置及控制電路等組成的新的硬體系統,來完成數據採集,並保證整個系統的測試精度要求。When the pitch of the grating sensor is 20 m, the system can achieve 20 division, and the system minim resolving power is 1 m
針對柵距為20 m的光柵傳感器完成了20細分,解析度達到1 m 。Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes
本文所做的主要工作包括以下幾個內容:一、選取了常見的熱膨脹系數大的材料製作封裝元件,經過多次一80到80反復測試,封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷,封裝材料具有良好的溫敏穩定性及復用性,與光纖相容性較好;二、對光纖光柵進行簡單、實用的封裝處理,就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗,得出了初步的結論;三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比,從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析,在大量實驗數據分析結果的基礎上,總結出哪種材料封裝效果更好,以及如何有效的減小實驗誤差。The methods of demodulation and multiplex technique used in fiber grating sensor are introduced in this dissertation
並詳細介紹了光纖光柵傳感中的解調技術以及復用技術。A study of discerning direction and subdivision circuit about grating signal with moir 233 ; fringe based on dsp
的光柵莫爾條紋信號辨向與細分電路研究The hardware of the system is made up of p89c61x2ba as main processor, usbn9604 as usb interface, grating signal - processing circuit, xc95108 as signal subdivision, sensing, counter circuit and so on
硬體部分以p89c61x2ba為控制核心,包括採用usbn9604介面晶元的usb介面電路,光柵尺輸出信號處理電路,以xc95108為主的信號細分、辨向和計數電路等。In the part of hardware design, the grating signal processing module is designed in a cpld device. the methods of realizing the functions of filtering, four - subdivision, sensing, counting and mcu interface are described in detail
在介面卡硬體設計中,採用cpld器件設計了光柵信號處理電路,詳細論述了光柵信號處理電路中濾波、四細分、辨向、計數和與單片機介面等功能的實現方法。2 ) the coupled - mode equation analyzing the characteristics of fiber grating is deduced step by step. two methods - the transfer matrix metod and the runge - kuttar method are compared, which are often used to solve the coupled - mode equation
2 )詳細推導用於分析光纖光柵特性的耦合模方程,重點對兩種解耦合模方程的方法進行比較:龍格-庫塔法和傳輸矩陣法。2. the mode coupling for the lpfgs is analyzed though both the mode coupling theory and transmission matrix theory
2 、詳細闡述了長周期光纖光柵的模耦合理論和傳輸矩陣理論,並進行了模擬計算。Biology, etc. owing to many merits has not yet been used to measure parameters of gratings. the paper researches on the subject in view of current lack of it. the main tasks of the paper include : analyzing ellipsometric characteristics of gratings in detail with vector diffraction theory and ellipsometrics ; devising a reflective quarter wave plate at normal incidence according to some ellipsometric characteristics ; making use of normal simplex algorithm during ellipsometric inversion of gratings parameters, inversing ellipsometric parameters with gaussian noise of different standard deviations to simulate actually measured values with examples of isotropic metallic and anisotropic step gratings and testing that ellipsometry about gratings parameters is feasible with the range of certain precision ; discussing choice of incidence angle at length
本論文的主要工作包括:結合光柵的矢量衍射理論和薄膜的橢偏理論,詳細分析了光柵的橢偏特性;並且根據一些橢偏特性設計出一款正入射反射型單波長1 4波片;在光柵參數的橢偏反演中,引入正單純形法作為反演演算法,分別以各向同性的正弦形金屬光柵和各向異性的階梯型光柵為例,在標準橢偏值的基礎上加入不同偏差的高斯噪聲來模擬實際的橢偏測量值進行反演,在一定精度范圍內得出滿意的光柵參數,說明光柵參數的橢偏測量是可行的;還就入射角的選取問題進行了一定的探討。This proof following enterprise already through the authentication, and has set up a file in the dongguan 114 nets industry and commerce enterprise database, inquires the more detailed enterprise material, please dial the dongguan enterprise information desk 96060 ( artificially ) 9686810114 billion ( to be automatic ), this enterprise numbers for 51201
茲證明光柵三維立體畫六月已通過認證,並已在東莞114網工商企業數據庫中備案,查詢更詳細的企業資料,請撥東莞企業查詢臺96060 (人工) 9686810114 (自動) ,該企業編號為51201 。It is difficultly to enhance the resolution of encoders if commonly depending on thinner engraving grating. therefore, at present, the primary technology to improve the encoders " resolution is the interpolation technology of the moire stripe signal
由於單純依靠製造上刻劃更細的光柵來提高光電軸角編碼器的解析度是很難實現的,目前普遍採用光電信號細分技術來提高光柵系統的精度和解析度。In order to study the thermal performance and residual stress of microelectronic subassembly, in this paper, a newly optical interferometry method for 3 - d displacement measurement is developed based on wavefront interference theory. in which the moire interferometry provide the in - plane displacement, but the system is different from the conventional interferometry, the system applies the double diffraction of the specimen grating, the in - plane displacement sensitivity is a factor of 2 higher than that of the conventional moire interferometer. twyman / green interferometry method for out - of - plane displacement measurement is adapted, the advantages of the optical set - up are structure novelty, and the fringe patterns of the displacement fields shown high contrast and spatial resolution
為了詳細研究試件的熱變形特徵以及殘余應力的影響作用,本文在波前干涉理論的基礎上,設計了一新型三維光學測試系統,該系統的平面位移測試基於雲紋干涉方法,但採用與普通雲紋干涉不同的光路系統,利用試件光柵和平面反射鏡組形成的兩次衍射,使平面位移干涉條紋倍增,測量靈敏度是普通雲紋干涉的2倍,系統的離面位移場測試採用泰曼格林干涉光路。Abstract : the second scalar analysis method to calculate the di ffraction efficiency of grating was described in detail, a simple effective approximation formula to calculate the diffraction efficiency of grating was educed. diffraction efficiencies were given and compared with scalar results, rigorous vector results
文摘:詳細介紹了計算光柵衍射效率的二階標量近似法,推導出一種簡單有效的計算光柵衍射效率的近似公式.給出了利用近似公式對幾種情況下光柵衍射效率的計算結果,並與普通標量法、嚴格矢量法的計算結果進行了比較The interpolation errors of the moire stripe signal have worked on the whole precision of encoder greatly for high - resolution, high - accuracy photoelectric rotary encoders. however it ' s difficult to measure the resolution errors under the conditions of smaller grating pitch and many interpolations
對于高精度、高解析度光電軸角編碼器來說,光電信號細分誤差對光電軸角編碼器整體精度的影響很大並且在光柵節距較小、細分份數較多的情況下,分辨力誤差很難檢測。2. several theoretical analysis methods of fiber grating characteristics are presented, including the mode - coupling theory, transfer matrix method, multi - film method and fourier transfer method. the spectra of the fbg and lpg have been analyzed by these methods. the multiplexing techniques and fiber grating demodulation methods are introduced in this dissertation
2 、系統介紹了光纖光柵的理論分析方法,並利用這些方法中的耦合模理論、傳輸矩陣法和傅立葉變換法對布拉格光柵、長周期光柵、啁啾光柵的光譜特性進行了分析並詳細介紹了光纖光柵傳感的復用技術和解調技術。In the paper, firstly, the tache of position ' s check has been discussed, then the measuring theory and transition of signal for encoder, which is a high precision measurement are described and the interpolator circuitry is also put forward
文中首先對測控系統的位置檢測環節進行了論述,討論了高精度的檢測元件? ?光柵的測量原理及其信號轉換方法,並設計了細分介面電路。分享友人