beam sensitivity 中文意思是什麼

The effect of the parameter of the spring beam on resonant frequency, sensitivity, cross sensitivity of the structure of the accelerometer, the effect of the electrostatic force on the accelerometer, the dynamic performance of the accelerometer are analyzed

論文採用了一種新的建模模擬法，即原理級描述模擬法，建立了叉指式微加速度計的參數化機電混合系統模型，對其進行分析研究。

Finally, respect to the beam effect induced by special high ratio of modulus of elasticity of baise gravity dam, the sensitivity analysis are carried out to study the relation among displacement, stress state of dam and rock bed parameters

最後，針對百色重力壩特殊的高彈模比地質條件所致懸臂效應，對壩體及壩基的變形和應力狀態與壩基力學參數之間的關系進行了參數敏感性分析。

During the past several years, due to significant advances in the development of solid state components and high speed signal - processing technology, multi - beam array imaging systems, which promise an increase in sensitivity and resolution have received considerable interest in both the military an civilian applications

近年來，隨著毫米波固態器件以及高速信號處理技術的迅速發展，高靈敏度、高解析度的多波束陣列目標探測技術正引起軍事和民用領域濃厚興趣。

According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。

In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology

為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。

The multi - beam receiver is the most recent addition to this exclusive club, and it provides seti scientists with a level of sensitivity that could never be achieved with the line feed antenna

多波束接收器是其中最新的一個成員，它將為seti的科學家提供使用線反饋天線所永遠無法企及的靈敏度。

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。

Based on the perturbation riccati transfer matrix method, the calculating program are developed. the program can be used to the perturbation analysis and the sensitivity analysis of the real and complex, the single and repeated eigenvalues and eigenvectors for lateral vibration of rod and beam structures, especially suitable to the perturbation analysis and the sensitivity analysis of eigenvalues and eigenvectors for rotordynamic systems ; 2. the perturbation riccati transfer matrix method was applied to identify the parameters of the rotor for a boiler supply pump, and the accurate dynamic model of the rotor was archived

該程序可以對桿、梁結構橫向彎曲振動的實數、復數的孤立和重頻特徵值問題進行攝動分析和靈敏度分析，特別是適合於轉子動力學系統特徵值和特徵向量問題的攝動分析和靈敏度分析； 2 、用攝動riccati傳遞矩陣方法解決了某電站鍋爐給水泵轉子的參數識別及動力模型修改的問題，並給出了該種型號的給水泵轉子的更準確的力學模型，為進一步的轉子動力學分析與設計奠定了可靠基礎； 3 、給出了攝動理論在相關領域如隨機特徵值分析、隨機振動響應分析、可靠性分析、靈敏度分析、優化設計以及參數識別中的應用公式。

Under our task experimental condition, we calculated the sensitivity of our planning to develop dial system with direct detection, besides, we studied the relationship between the sensitivity of measurement and atmospheric refractive - index structure constant and applied matlab program simulated the system parameters such as beam diameter, laser divergence angle, detection distance and gained relevant relationship curves

在課題實驗條件下，模擬計算了直接檢測dial系統的測量靈敏度。在考慮大氣折射率結構常數對系統測量靈敏度影響的基礎上，並對各種系統參數如光束半徑、束散角和探測距離對測量靈敏度的影響運用matlab程序做了模擬計算，為合理選擇系統設計參數提供了依據。

2. the design thought of annular fan beam sensor structure is presented, and array laser sensor of 15x5 fan beams structure was developed. the sensor ' s measurement sensitivity distribution and spatial resolution are analyzed and calculated

提出了環形扇束傳感器結構的設計思想，並研製了15 5扇束結構的陣列式激光傳感器，以及對其測量靈敏度分佈和空間解析度等性能指標進行了分析計算。

A design of using lpcvd silicon - rich silicon nitride of low residual stress as the resonant beam is proposed based on technology of sacrificial porous silicon and a new type peninsula structure is also proposed for high pressure sensitivity

提出了基於多孔硅犧牲層技術的利用lpcvd生長的低應力厚的富硅氮化硅作為諧振梁的壓力傳感器結構設計。為了提高靈敏度，還提出了一種半島結構。

Against classical dynamic balancers of crank and connecting rod mechanism, the test system has virtue hereinafter : ( 1 ) supporting structure adopt projecting beam uniquely. the signal of vibration provoked by crank and connecting rod mechanism revolving is concentrated to strain beam. the signal is not only abundance, but also easy to test and the test sensitivity is great

與傳統的曲柄連桿機構動平衡機相比，這種測試系統具有以下優點：支承結構採用獨特的懸臂梁式結構，曲柄連桿機構在運轉過程中振動規律完全映射到支承梁的應變上，振動信號豐富且易測試、靈敏度高。

Using commercial fea software, computer simulation is carried on the characteristics of the resonator and the pressure sensitivity for several silicon / silicon nitride beam structures

應用有限元分析軟體，對硅梁及氮化硅梁的多種結構，進行了計算機模擬，分析了熱激勵諧振器的特性以及壓力敏感特性。

Numerical results show that the top - hat beam stl instrument is more sensitive than the gaussian beam stl instrument, with a maximum sensitivity enhancement factor of approximately 2. 3

測量了信號的衍射分佈，信號與激勵光功率、激勵光斑半徑、調制頻率、探測距離的關系，與理論吻合較好。

During the study on the mutation effects of ion beam on arabidopsis seeds, it was found that the sensitivity degree of different ecotype seeds was different. plant survival rate could be affected by different ions " energy and ions " type

在對離子注入擬南芥種子引起的誘變效應的研究過程中發現，不同生態型擬南芥種子對注入劑量的敏感度不同，離子能量、離子類型對種子成苗率也有影響。

Moreover, higher sensitivity can be achieved when a top - hat beam is used as the excitation source

且使用平頂光束作為激勵光可以提高光學薄膜微弱吸收的測量精度。

Current detection systems relied on mechanical scanning of a single beam across the scene has problems of low spatial resolution and poor sensitivity

目前毫米波目標探測系統普遍採用單天線波束進行機械掃描成像方式，但是卻存在著空間解析度不高和靈敏度較低的不足。

A deep beam model with spring bearing is given, based on the analysis of middle frame of frame and shear wall structure ground floor, which is sensitivity to floor rigidity. comparing rigid assumption to elastic assumption, shear error of frame is worked out, which is index of floor rigidity. conclusions are drawn that floor rigidity is independent of earthquake intensity and the most effect factor to floor rigidity is floor length to width ratio

以樓板按剛、彈性計算的框架柱的剪力誤差值作為衡量樓板剛性的指標，通過對模型進行理論分析證明以往一些只能通過歸納總結得出而沒有理論支持的結論：樓板的剛性同地震烈度無關；通過對影響樓板剛性的各個因素進行分析比較，得出樓板的長寬比是影響樓板剛性的主要因素，而增加樓板的厚度並不是增加樓板剛性的有效途徑。

This thesis presents my study efforts on new type of fiber - optic sensors iber optic bragg grating sensor. prime contents include development and product course of fiber bragg grating ( f5g ), demodulation principles of f5g, design of demodulation system of fiber grating sensors with a cantilever beam, analysis of experiments, and a mechanism based on fiber grating - pair is presented which is used to study the solution of cross - sensitivity of fiber grating sensor measurement

本論文的研究工作是對新型光纖傳感器?光纖bragg光柵傳感器的應用基礎研究。基本內容包括：光纖光柵的發展和製作工藝、光纖光柵的傳感解調工作原理、基於懸臂梁的實用化的光纖光柵解調系統的設計、原理性實驗結果的分析討論以及提出一種利用光纖光柵對來解決交叉敏感問題的方案。

Abstract : this paper studies the sensitivities in the structural optimization of the sheet cover, including the stress sensitivity and the displacement sensitivity as well as the eigenvector sensitivity. the sensitivities are solved by the finite element method. a beam element and a plate element are used for the structural analysis of the sheet cover. some equations about the sensitivities are given out and are applied to the structural optimization of the sheet cover. the results prove to be satisfactory

文摘:分析了在薄壁覆蓋件結構優化中應力敏度和位移敏度的計算方法，利用有限元法進行結構分析和敏度計算，推導出敏度的計算公式，並應用於薄壁覆蓋件的結構優化設計，得到了滿意的結果.薄壁覆蓋件的有限元分析採用了板單元和梁單元，應用實例的計算結果表明，應力敏度、位移敏度等的計算方法準確、可靠