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moire n.云[波]紋綢〔又叫 moire antique〕。

moist

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、高分辨率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并且在光柵節距較小、細分份數較多的情況下,分辨力誤差很難檢測。

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征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于云紋干涉方法,但采用與普通云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,測量靈敏度是普通云紋干涉的2倍,系統的離面位移場測試采用泰曼格林干涉光路。

By using moire method , three groups of pmma specimens with single edge crack were experimentally researched under constant stress , especially the strain field around crack - tip . through measure and analysis , we could see its time dependence clearly . we compared the actual strain distribution with the theoretical linear viscoelastic strain distribution 利用云紋法,對四組含邊裂紋的pmma試件在恒應力條件下的裂尖周圍的應變場進行了測定、分析,可以看出其明顯的時間相關性,并與基于線彈性假設的裂尖應變場進行了對比。

Subassemblage and prestressed concrete frames are assembled by precast prestressed beams and columns with tendons in the joints of the frames . these beams and columns are hoisted in site and the tendons are passed through the moire pipes . so prestressing force are brought to the joints of the frame . these tendons also can assume the moments at the end of the beams in ordinary condition 預壓裝配式預應力混凝土框架是采用工廠化生產的預制柱和預制預應力梁,運至現場直接吊裝,梁柱就位后,將后張預應力筋穿過粱柱預留孔道,對節點實施預應力張拉預壓。

This system provides photo elastic , moire , holographic , speckle technology contained in optical measure strain and displacement analysis software interface , and mainly realizes photo elastic image collection , interference image pretreatment , automatic skeleton extract method , automatic main strain trace protraction method and planar photo elastic image strain analysis function . all the work that the author has done has established a good foundation for more realization of an intact optical measure image strain analysis software system . furthermore , engineer and lab assistant can quickly obtain concise , intuitionistic and quantificational information 該系統提供了光測力學所包括的光彈法、云紋法、全息法以及電子散斑法等技術應力和位移分析軟件實現的接口,主要實現了等差線圖像和等傾線圖像的采集、干涉條紋圖像預處理、全自動提取光彈條紋圖像骨架線、全自動繪制主應力跡線以及二維光彈應力分析功能,為進一步開發完整的光測力學圖像應力分析軟件奠定了基礎,同時使工程技術人員以及實驗人員能夠迅速的獲取簡明、直觀、定量的信息。

Subassemblage and prestressing concrete frames are assembled by precast prestressing beams and columns with tendons in the joints of the frames . these beams and columns are hoisted in site and the tendons are passed through the moire pipes . so prestressing force are brought to the joints of the frame . these tendons also can assume the moments at the end of the beams in ordinary condition 預壓裝配式預應力混凝土框架是采用工廠化生產的預制柱和預制預應力梁,運至現場直接吊裝,梁柱就位后,將后張預應力筋穿過梁柱預留孔道,對節點實施預應力張拉預壓。

The analysis in this paper demonstrates the power of the transfer matrix method , which can get the features of aperiode fiber grating fastly , referent the papers [ 1 - 2 ] ( published ) . 3 ) in terms of the theoretical mode of mfc , the effect of mfc parameters on its features - chirped moire fiber grating and moire fiber grating formed by two uniform fiber grating with different central wavelengths , is discussed individually . by comparison between the two kinds of mfc , chirped moire fiber grating is better for owdm , referent the paper [ 3 ] ( to be published ) 3 )從摩爾光纖光柵的理論模型出發,分別討論啁啾摩爾光纖光柵和由兩中心波長不同的均勻光柵構成的摩爾光纖光柵的各參數對其特性的影響,對比這兩種摩爾光纖光柵的特性,發現啁啾摩爾光纖光柵更適合光波分復用系統的要求,參考待發論文[ 3 ] 。

In the owdm systems , there are a lot of active components and passive components with excellent characteristics , which make multiple optical signals transmit simultaneously without interaction in the same fiber and perform its function by the light , such as optical signal interchange multiplexing / demultiplexing etc . moire fiber grating ( mfc ) is a new kind of passive components 光波分復用系統的建設需要大量性能優良的光有源器件和光無源器件,以保證多個波長的光信號同時在一根光纖上傳輸時相互獨立,光信號的交換、復用和分用等功能以光的方式處理。

In suburbia we all got mixed together . atheists , agnostics and people of all faiths . people who lived by the ten commandments , and many people who did not live by the ten commandments . so the social moire of suburbia no longer was a force behind the moral and spiritual values dominated by the judaic christian culture 相同種族文化的連系一起居住在郊區,有無神論者和不可知論者,還有很多不同信仰的人,有以十誡為生活準則的人,也有很多不信奉十誡的人,主導猶太基督教組織的道德和靈性價值,不再主導著郊區居民的社交生活。

According to the analyzing on the questions such as the parameters of moire stripe signal influence on photoelectric rotary encoder interpolation errors , lissajou chart ' s characteristics and applications in interpolation errors measurement , we developed a dynamic measurement method about the parameters of moire stripe signal and interpolation errors evaluation . with the combination of hardware and software , a dynamic measurement system of interpolation errors of photoelectric rotary encoder is designed 通過分析莫爾條紋信號的各種信號質量指標對光電軸角編碼器細分誤差的影響, lissajou圖特性及其在細分誤差測量中的應用,研究出光電軸角編碼器光電信號參數測量及細分誤差評估的動態測試方法,并針對這一方法通過硬件及軟件技術的結合,設計出一套光電軸角編碼器細分誤差的檢測系統。

Optical 3 - d profilometry has been widely used for 3 - d sensing , machine vision , intelligent robots control , industry monitoring , biomedicine , dressmaking , etc . several 3 - d object profilometry methods , including moire technique ( mt ) , phase - measuring profilometry ( pmp ) , fourier transformation profilometry ( ftp ) , modulation measurement profilometry ( mmp ) have been exhaustively studied 光學三維傳感已廣泛應用于機器視覺,實物仿形,工業檢測,生物醫學等方面,在三維面形測量中,對莫爾輪廓術,位相測量輪廓術,付里葉變換輪廓術,調制度測量輪廓術這些方法已經進行了大量深入的研究。

Along with the development and maturity of in - system programming technology , it is possible to conduct the integrating designation with the isp logic devices . this article briefly introduces the most popular system design technology : vhdl and isp logic devices , and design a kind of high integrated grating digital readout devices on the basisi of moire fringe division theory 方案中將當今最流行的系統設計技術vhdl和在系統可編程( isp )邏輯器件作了簡要介紹,并介紹了一種基于光柵莫爾條紋細分理論的高集成度的光柵位移變送器。

Subassemblage and prestressed concrete frames are assembled by precast prestressed beams and columns with tendons in the joints of the frames . these beams and columns are hoisted in site and the tendons are passed through the moire pipes . so prestressing force are brought to the joints of the frame . these tendons also can assume the moments at the end of the beams in ordinary condition 預壓裝配式預應力混凝土框架是采用工廠化生產的預制柱和預制預應力梁,運至現場直接吊裝,梁柱就位后,將后張預應力筋穿過梁柱預留孔道,對節點實施預應力張拉預壓。

The passing parts of this catena product all adopt fluorine plastics alloy to press the most outstanding trait is having magnetic function , wholly design for especial chemical craftwork work - section need to extract material above liquid - exterior . the axis - envelop choose advanced outer - install form moire - pipe machine - airproof , airproof of oppositely abrade have silicon nitride chinaware f4 horniness alloy to choose 本系列產品過流部件全部采用氟塑料合金制造,最突出的優點是具有自吸功能,是專為一些特殊的化工工藝工段需要在液面以上抽取原料而設計的。

The passing parts of this catena product all adopt fluorine plastics alloy to press , its headmost product of fluorine alloy centrifugal pumps , axis - envelop choose advanced outer - install form moire - pipe machine - airproof , airproof of oppositely abrade have silicon nitride chinaware f4 horniness alloy to choose 本系列產品過流部件全部采用氟塑料合金模壓成型工藝制造,是國內生產的最早的一代氟合金離心泵產品,軸封選用先進的外裝式波紋管機械密封,對磨的密封面有:碳化矽陶瓷四氟硬質合金可供選擇。

The wavelengths are specified by two bragg gratings in pm fibers . the proposed laser can be designed to operate in stable four - wavelength or wavelength switching modes only by simple adjustment of two polarization controllers . two moire bragg gratings in pm fibers are respectively fabricated successfully through stretching and double , triplicate 4 .在2 , 3工作的基礎上,在連續光輸出的激光器諧振腔內加入調制器進行主動鎖模,分別得到了基于側向應力作用下的光纖光柵、單個保偏光纖光柵、兩個保偏光纖光柵進行選頻的多波長的鎖模光纖激光器。

In the testing , we experiment on a plate with a circle hole ( 2 - dimention ) and a ladder axis with arc transiting ( 3 - dimention ) , and compare the former to the result measured by moire method and the later to an aluminum axis with similarity of geometric structure by electric measure method . the results are closed to these of corresponding references . sequentially , it is proved that the theory is reasonable and the method is feasible 在算例方面,論文分別采用光彈性法和電測法對帶中心圓孔無限寬板的平面問題和圓階梯軸的三維問題進行了驗證,并將分析結果與相關文獻進行比較,得到了一致的結果,從而驗證了理論分析的合理性及本方法的正確性。

In this paper , a novel whole - field residual stress measurement technique is developed using three - dimensional moire interferometer and hole - drilling method coupled with finite element method . the technique is successfully applied to thermal deformation and residual stress measurement in f - 1c , in these measurements , the thermal strain is achieved and the whole - field residual stress distribution , including the possible stress concentration , is obtained . from these measurements , we can see the thermal strain and residual stress plays a significant role in the mechanical performance of a structure and its structural integrity 本文利用新型三維光學測試系統并結合盲孔釋放和有限元數值模擬的方法,對f - 1c電子封裝試件進行了熱變形和殘余應力分析,掌握了試件的熱變形特征、殘余應力的分布規律及其影響作用,找到了試件失效的一些重要原因,為試件的改善提供了理論和實驗支持。

It has well durative heat stability and outdoor hardiness , which is mainly used in producing industry level translucent board , color board , moire board , especially fitful in slap - up translucent pvc product process . it can also be used in abs , hips , ps plastic modification 它有良好持續熱穩定性和顯著的室外耐候性,主要用于生產工業級透明板材,彩色板波紋板特別適用于高檔透明pvc制品加工,也可用于abs , hips , ps塑料的改性。