最大感光度 的英文怎麼說
中文拼音 [zuìdàgǎnguāngdù]
最大感光度
英文
maxiumu sensitivity-
The company has established a scaled production line for sensors of such types as pressure, temperature, force, shift, photoelectricity, etc. and automatic control systems on the basis of following the purpose of “ create the biggest value for customers ” and the credendum of “ service supreme, property first ”, and can perform batch production of products of more than one hundred specifications
公司本著「為顧客創造最大價值」的宗旨,以「服務至上,性能穩定壓倒一切」為信條,建立起壓力、溫度、力、位移、光電等類型傳感器及自動測試控制系統規模化生產線,批量生產上百種規格的系列產品。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 。With the increasing light adaptive time, the length of rhabdom trended to be longer and proximal pigment trended to spread more widely, but the variation was smaller in full bright light and short wave ( blue ) light conditions than that in long wave ( red ) light condition
藍光照條件下感桿束直徑和長度變化與全光照相似,但近端色素的伸展幅度以藍光下條件最大,紅光次之,均大於全(色)光照條件。復眼結構對短波光(藍光)的敏感性高於長波光(紅光) 。There isn t really a focal point you can grap from any of the scenes or dialogues. the only observation i got from the initial viewing is the continuing promotion of the " weak male and strong female " concept. anna is without doubt a strong character. as a martial artist, she is not only one of the participants of the tournament, but later also becomes the protector of the glory and reputation of shaolin temple ; as a lover, she is firm about what she wants
石安娜武功了得,極具大將之風,甚至肩負起光復少林的重任,是一個強者,相對而言,花心的紀大健好像小鳥依人一樣,工作上胡胡混混,態度得過且過,毫無斗心,在武林大會上頂多隻能在場邊替安娜打氣,在感情上的安排也一撻糊塗,最後還得靠女友(何韻詩)拼棄前嫌收拾殘局。As a martial artist, she is not only one of the participants of the tournament, but later also becomes the protector of the glory and reputation of shaolin temple ; as a lover, she is firm about what she wants. compared to her, ken is rather weak. at work, he doesn t exactly know what he is doing ; at home, he cannot make up his mind and choose the girl he wants
石安娜武功了得極具大將之風甚至肩負起光復少林的重任是一個強者相對而言花心的紀大健好像小鳥依人一樣工作上胡胡混混態度得過且過毫無斗心在武林大會上頂多隻能在場邊替安娜打氣在感情上的安排也一撻糊塗最後還得靠女友何韻詩拼棄前嫌收拾殘局。Basic equipment includes camera with long time exposure function, tripod and fast film iso400 or above. camera lens should be set to infinity with maximum aperture. then, you can point the camera to the night sky for a 5 - minute exposure time
將鏡頭對焦至無限遠,對準獅子座及其鄰近星座,光圈調至最大,配合高速的底片iso400或以上或將數碼相機的感光度調高,作5分鐘長時間曝光,或有收獲。The principal axis torsion angle, produced by torque, is converted to two channel square waves with phase difference through grating sensor. then the degree of torsion angle is measured by data collection card. finally the value of torque and the other parameters of the axis can be calculated by upper pc
將主軸受扭矩作用而產生的扭轉角,通過光柵傳感器轉換為兩路有相位差的方波信號,再通過數據採集系統檢測出扭轉角的度數,最後由上位pc機計算出扭矩的大小和主軸的各種參量。The results show : ( 1 ) the light compensation point and light saturation point of s1 s2 and s3 were in range of 12 ~ 27 mol / m2 s and 180 ~ 360 mol / m2 s, respectively, and they changed with the irradiance. ( 2 ) both light compensation point and light saturation point of s1 were higher than those of s2 and 83, and s1 showed greater capability against high irradiance than s2 and s3. ( 3 ) the optimal temperature of the three strains were 25, 35 and 30, respectively, and they had temporal effect. ( 4 ) respiratory rate rose as the temperature rising, and at about 40, it reached the peak
結果表明: ( 1 ) s _ 1 、 s _ 2 、 s _ 3的光補償點和光飽和點的變化范圍分別為12 27 mol m ~ 2 ? s和144 360 mol m ~ 2 ? s ,二者可隨光照環境的變化而變化,其中s _ 1的光補償點和光飽和點均高於s _ 2和s _ 3 ,且表現出強于其餘兩個藻種的抵禦強光輻射的能力; ( 2 )三個藻種的最適溫度分別為25 , 35 ,和30 ,具有時間效應; ( 3 )呼吸速率隨溫度的升高而升高,最大值出現在40附近;溫度低於25 , s _ 1的光合速率最高,呼吸速率最低,表現出很強的低溫適應性; ( 4 )螺旋藻的光合特性可隨光照環境的變化而變化,光強增強,可使螺旋藻的最適光照范圍增大,抵禦強輻射的能力增強; ( 5 )螺旋藻受到溫度脅迫時,其最適光照范圍變窄,對光強的敏感性增加。Analyzing spectral features of field measurements and landsat tm image, the best time of cotton identification using remote sensing is confirmed. and a spectral information based cotton discrimination model using landsat tm image on a large scale was developed. the model is simple, more accurate and suitable for operational work which was evaluated by mathematics analysis and field experiment
通過對各時期棉花及主要農作物的地面測量光譜與tm圖像光譜特徵的差異性及規律性分析,確定試驗區棉花識別的最佳時相為9月;通過對最佳時相的tn圖像中各種農作物光譜特徵的分析研究,建立了大尺度的棉花遙感識別模型。The research work presented a large quantity of debris characteristics parameters, and especially made a thorough study on the characteristic description of sediment chain graph ; meanwhile, the sensibility, differentiation and information redundance analyses of the characteristic parameters also supplies the quantitative indexes for the filtration and optimization of the debris characteristic parameters ; in addition, the debris fusion decision recognition method based on the proof fusion theory and the comprehensive debris recognition flow provide reliable recognition arithmetic for debris recognition ; and lastly, the fault fusion diagnosis judging method based on ferro - graph and spectral analysis provides the basic diagnosis method in theory for multi - fault premonitory diagnosis system of aero - engine
本文研究工作提出了大量磨粒特徵參數,尤其深入研究了沉積鏈譜片的特徵描述問題;同時,特徵參數的敏感性、區分度與冗餘度分析為磨粒特徵參數的篩選優化提供了量化指標;另外,基於證據融合理論的磨粒統計融合決策識別方法以及磨粒綜合識別流程為磨粒識別提供了可靠的識別演算法;最後,基於光譜和鐵譜信息的磨損故障融合診斷決策方法為發動機多故障徵兆綜合診斷系統提供了基本的診斷理論手段。An example of this technique is shown in fig. 1. 3 for a particular magnification and diffraction setting where the relative rotation is degrees it is conventional, nowadays, to print all micrographs and diffraction patterns with the emulsion side of the photographic plate upwards and consequently, the rotation obtained from experiments, such as that indicated in fig. 1. 3, is in the same sense as that which appears on the viewing screen
這種技術的一個例子如圖表1 . 3所示,相對的旋轉為度下的一個特定的放大和衍射設定是當前最普遍的,可用於印刷所有的顯微圖和攝影用感光板上的乳劑面的衍射模型,因此,實驗獲得的旋轉,如圖1 . 3所示,和在視圖屏幕上顯示出來的有相同的意義。Because of the intrinsic nonaquaeous of this indicator, the network size of ps membrane can be controlled and the leaking of the fluorescent indicator in water can also be prevented by adjusting the appropriate proportion among the matrix, solvent and the indicator
將其固定於ps膜中製成ps敏感膜,由於該指示劑本質上不溶於水,在制備敏感膜時適當控製成膜配比,可最大限度地防止熒光指示劑的滲漏,因此該指示劑特別適合長期檢測溶解氧。A technique, based on maximizing signal to noise ratio ( snr ) of the system, has been proposed. this method includes the determination of optimum wavelength of the laser and avalanche gain of the avalanche photodiode ( apd )
( 3 )從分散式光纖溫度傳感系統的實際設計出發,選取了激光器最佳工作波長,對apd的最佳雪崩增益特性進行分析,得到了使系統信噪比最大的設計結果。Owing to all - fiber - based system and the needle type of single fiber sensor head, it has many merits such as immunity to electromagnetic interference, simple structure, high measurement precision, high sensitivity and low drift
該傳感器系統採用針式單光纖結構的傳感頭,使得系統具有結構簡單、高精度、高靈敏度、無漂移等優點,其液位測量精度可達0 . 5mm ,最大光調制深度為21db 。In order to improve the accuracy of remote sensing image classification and compensate the weakness of maximum likelihood classifier, this paper puts forward a new classification method, which is based on support vector machine ( svm )
摘要為了提高遙感圖像分類的精度,彌補傳統最大似然分類方法所固有的分類時樣本不足的缺陷,提出了一種基於支持向量機、光譜特徵和紋理特徵相結合的遙感圖像分類方法。The results show that the maximum likelihood classification based on variogram texture and spectral bands can perfectly define the grades of beach sandy land and inner desertification, and the maximal classification precision comes up to 92. 4 %, which proves that geostatistical texture is effective in the application of desertification monitoring
結果表明,運用變異函數紋理結合光譜波段的最大似然分類方法能夠很好地界定海灘沙地和內陸荒漠地的等級,最高分類精度達到92 . 4 % ,證明了基於地質統計學的影像紋理在實現該地區遙感荒漠化監測方面的有效性。分享友人