液晶濾波器 的英文怎麼說
中文拼音 [yèjīnglǜbōqì]
液晶濾波器
英文
liquid crystal filter- 液 : 名詞(液體) liquid; fluid; juice
- 晶 : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
- 濾 : 動詞(除去液體雜質) filter; strain
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 液晶 : [物理學] liquid crystal; mesomorphic phase; mesomorphous phase
- 濾波器 : [電子學] electric filter; (electric) wave filter; filter
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Then the paper analyzes control system of hybrid active power filter, the way of harmonic detecting and the principle of control system, digital low pass filter and the generation of pwm, on the base of which the paper designs a new parallel hybrid active power filter which is controlled by tms320lf2407, and detailedly introduces drive circuit of pwm, sampling circuit of current, voltage adjustment and protection circuit, communication circuit, liquid crystal display circuit
分析了混合型有源濾波器的控制系統、諧波檢測方法及控制原理、數字低通濾波器和pwm信號的產生,在此基礎上設計了一種基於tms320lf2407為控制核心的並聯混合型有源電力濾波器硬體原理圖。並對pwm驅動電路、電流采樣電路、電壓調整、按鍵輸入和保護電路、通信模塊、液晶顯示模塊進行了較詳細的分析說明。Liquid crystal tunable filters as an important device of wavelength division multiplexing and dense wavelength division multiplexing systems is caused attention by research department, especially many foreign research institute are studying it. but in our country its study is lag. and normal incidence of the crystal is almost the case, because the liquid crystal box is very thin, the field angle may be large and the pose of liquid crystal box may have impact on the measuring result. so, study in such subject, especially the liquid crystal box ' s position angle, is academic and valuable
各種改進液晶電光可調諧濾光片的措施的實現,使得液晶調諧濾光片成為一種很有應用前景的電光調諧濾光片,特別是用於光纖通信中的波分復用系統和密集波分復用系統,將使光纖的傳輸客量大大增加目前國外在這方面的研究進展很快,而國內在這方面的研究比較薄弱,而且通常採用光線正人射晶體進行研究,由於液晶盒很薄,視場角可以很大,液晶盒的擺放對測量結果影響很大,因此對該器件進行深入的研究,討論液晶盒的方位角影響是很有必要的。Use the import part of an apparatus and strict technique to make sure the quality. use the technology of dsp digital shift frequency, and adopt high speed of a d, d a switch electrocircuit
反饋消除技術,自動尋找反饋嘯叫頻點,液晶顯示嘯叫頻率,並自動形成數字濾波器,消除嘯叫頻率,能有效提升話筒增益Several key technology is particular expatiated in the paper such as eliminating the queer data by one rank difference method, the arithmetic of drawing a roundness with lattice liquid crystal, designing the iir digital filter, auto changing measure scale and software dependability design technique
本文詳細闡述了幾個關鍵技術:一階差分法剔除奇異項,點陣液晶的作圓演算法、 iir數字濾波器的設計、自動量程轉換和系統的軟體可靠性設計等。The paper has five sections include the basic knowledge and the experiment research, systematically analyses the impact of the liquid crystal box ' s position angle on the measuring result of liquid crystal lyot filter and the practical significance of this work. the work of this paper maily includes five sections : ( 1 ) the related theory of the crystal birefringence is systemicly introduced in this paper ; ( 2 ) the theory of the lc voltage - dependent birefringence is introduced ; ( 3 ) no voltage applied, changing curve between the transmission and the liquid crystal box direction is got from experiment ; ( 4 ) voltage applied, changing curve between the transmission and the liquid crystal box direction is got from experiment ; ( 5 ) desired wavelength is extract from changing the direction of liquid box. originality innovation of this paper is that the theory of the lc voltage - dependent birefringence is systemically introduced in this paper especially those related to voltage and direction
本文主要完成以下幾方面工作: ( 1 )比較系統地整理了晶體雙折射的有關理論; ( 2 )簡單介紹了液晶的電控雙折射特性; o )在未加電壓情況下,研究液晶盒方位角對濾光片透過率曲線的影響;廠)在加交流電壓的情況下,研究液晶盒方位角對濾光片透過率曲線的影響; ( 5 )利用方位角的調整來提取特定波長的譜線;本論文的創新之處在於比較系統地整理了晶體雙折射的有關理論,特別是與電壓及方向有關的理論,實驗得出了濾光片透過率隨液晶盒方位角變化的關系曲線,並將之運用於v吸器波長的話線朋In resent years, the electrically controlled birefringence of liquid crystal is widely used in displays, light valves and optical filters, more and more researchers have paid special attentions to it and shown great interests in it
近年來,液晶的雙折射效應廣泛應用於顯示、光閥和光濾波器等技術領域,引起人們的廣泛關注和極大的研究興趣。分享友人