絕對測光 的英文怎麼說
中文拼音 [juéduìcèguāng]
絕對測光
英文
absolute photometry- 絕 : Ⅰ動詞(斷絕) cut off; sever Ⅱ形容詞1 (完全沒有了; 窮盡; 凈盡) exhausted; used up; finished 2 ...
- 對 : Ⅰ動詞1 (回答) answer; reply 2 (對待; 對付) treat; cope with; counter 3 (朝; 向; 面對) be tr...
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 絕對 : absolute
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Our cosine correctors couple to optical fibers and spectrometers for relative and absolute spectral intensity measurements, for emissive color applications, and for evaluation of light sources such as leds and lasers
我們的餘弦校正器可與光纖和光譜儀連接,用於相對光譜強度和絕對光譜強度測量、發射光譜測量,以及對led光源和激光光源進行評價。Photochemistry : study the interaction between small molecules and radiation. measure the absolute photoabsorption and photoionization crosss sections, identify photochemical products, and elucidate energy evolution. application : combustion chemistry and atmospheric chemistry
一)光化學:研究光與小分子的作用.測量絕對光吸收及光游離的截面積值,驗明光化學產物為何,以了解光化學反應的能量走向.應用:燃燒化學及大氣化學Abstract : based on the objectivity of space, time and their measuring, the author gives a ideal experiment of space and time measuring, educe the difference between true time and metrical time ( this difference results from the finity of light speed ), thus proves the relativity between metrical time and true time and the relativity between given reference points, gives the express formulas of relative velocity
提要:從時空及時空度量的客觀性、絕對性出發,通過具體的空間、時間測量理想實驗,導出測量時刻、時間與客觀時刻、時間的差異(這種差異的根源在於光速傳播的有限性) ,從而說明測量時刻、時間對于客觀物理量及不同參照點的相對性,給出了客觀勻速直線運動的相對速度表達式。This article studies on a novel method about detector calibration and monochromator calibration by using silicon pin photodiode. the detector and the monochromator of one spectrum measurement system had been calibrated using the method, and the spectrum distribution of one laser - produced plasmas ( lpp ) source with jet gas target was measured. the use of a specific combination of the silicon photodiode and multiplayer reflect films is the notable character in monochromator calibration
本文研究了一種利用光電二極體傳遞標準探測器標定普通探測器和單色儀系統的方法,實際標定了所用的探測器和單色儀系統,測得了噴氣靶激光等離子體光源的相對光譜分佈,設計出絕對光譜分佈的測量方法,並且利用labview的g語言及相應的數據採集卡等硬體設備構造出一套智能化、高效率的測量系統,完成了多層膜反射率測量工作。It realizes high - accuracy test of angle position and real - time control, and satisfies the needs of some fields for high - accuracy and high resolution absolute photoelectric rotary encoders, such as snare science automation and national defense construction, etc
因此可實現角位置的高精度檢測與實時控制,從而滿足空間科學、自動化和國防建設等領域對高精度、高解析度絕對式光電軸角編碼器的需要。Abstract : we have studied the polarization beats spectroscopy with phase - conjugation geometry in a cascade three - level system. it was found that the accuracy for the energy - level difference measurement is determined by the homogeneous linewidths of the optical transitions. under the condition for the occurrence of beating, the frequency difference of the beat between two independent light sources could exceed the laser linewidth. the measurement accuracy for laser absolute frequency could reach the same order of magnitude as the laser linewidth
文摘:研究了級聯三能級系統中的相位共軛極化拍頻光譜術.發現其對能級差的測量精度決定於光學躍遷的均勻增寬.在符合拍頻條件時,兩獨立光源拍頻的頻差可以超出激光線寬,激光絕對頻率的測量精度可達到與激光線寬同一量級Typical absolute standards include two types : absolute standard detector and absolute standard light source
常用的絕對標準有兩類:絕對標準探測器和絕對標準光源。Plasma characteristics of a rf ion source are investigated by emission spectroscopy. the spatiotemporal spectral line intensities of the first three atomic lines in hydrogen bahner series ( = 656. 28, 486. 13, 434. 05nm ) of rf ion source plasma, are measured with calibrated optical multichannel analyzer ( oma ). some plasma parameters, including electron temperature, hydrogen atom density and hydrogen ion density, are calculated and analyzed using partial local thermodynamic equilibrium ( plte ) theory and abel transform
實驗採用絕對定標后的光學多道分析系統( oma )測定了離子源等離子體不同時間和空間位置的氫原子巴耳末譜線系中前三條譜線( = 656 . 28 , 486 . 13 , 434 . 05nm )的強度,並採用plte的理論和abel變換方法,計算出了高頻離子源等離子體的電子溫度、氫原子濃度、氫離子濃度等參數在放電的不同階段和徑向分佈情況,並進行了簡要分析。Fiber optic gyroscope ( fog ) is an advanced instrument to measure the angle velocity of rotation body. it realizes the measurement of optical sagnac effect using solid all - fiber structure. it overcomes mechanical - electrical gyro ' s reduction of dynamic performance and life - span caused by the structure or the requirement of high rotation rate mass, and the laser gyro ' s fabrication technology complication and high cost caused by the rigid requirement of optical circuit resonation
光纖陀螺是一種先進的測量載體絕對角速度的儀表,它利用固態的全光纖結構和sagnac效應來實現測量,克服了機電陀螺在構造上需要一定的高速度旋轉質量,導致動態性能及壽命的降低,或者環形激光陀螺因諧振要求過于苛刻,使工藝復雜性及成本過高等一系列缺點,從而成為當今最具有競爭性的新型陀螺。In the investigation of the interaction of the us - ui laser pulse with the plasma, a standard - ray source is firstly used to absolutely calibrate lif mermc - luminescence dosimeters ( tlds ), and the dosimeter are employed as the angular distribution spectrometer and the energy spectrum spectrometer of the hot electrons
在超短超強激光等離子體相互作用的研究中,首次採用137cs鄧標準源對lif熱釋光探測器( tlds )進行了絕對標定。並以此作為電子角分佈儀和電子譜儀的探測元件,研究了超短超強激光與等離子體相互作用中超熱電子發射的角分佈和能量分佈。Absolute optical frequency measurement
絕對光頻測量The approach is that we first calibrate the filter radiometer with cryogenic radiometer and measurement equipment of relative spectral responsivity and then calculate the absolute spectral responsivity. because the drift in blackbody temperature directly influnces measurement accuracy, so we adopt a feedback system to stabilize blackbody temperature through controlling the current of blackbody that improves measurement accuracy greatly
該方法首先要用低溫輻射計及相對光譜響應度測量裝置對濾光輻射計進行標定,經計算可得到濾光輻射計的絕對光譜響應度;由於黑體溫度的漂移直接影響到測量精度,我們採用反饋系統通過控制黑體的加熱電流,來穩定黑體溫度。Research of test technology for absolute spectral responsivity of hgcdte detector
Hgcdte探測器絕對光譜響應度測試技術的研究In order to supervise the work status of experiment bench, choose three position & velocity sensor which serve as detecting equipment
為檢測系統的工作狀況,選用三種位置速度傳感器,即:增量式光電編碼器、絕對式光電編碼器和旋轉變壓器。This paper describes the important breakthrough of laser frequency measurements technology since 1999, i. e. the absolute frequency value of laser frequency standards can be directly measured by femtosecond modelocked laser
摘要簡述了自1999年以來激光頻率測量技術出現的重大突破,用飛秒鎖模激光可以直接測量激光頻標的絕對頻率值。Sensors using fbg as the sensing component have many advantages including light weight, small size, anti electromagnetism interference, convenience in fiber connecting, wavelength absolute coding etc. multiple point detection of materials ( temperature, strain etc. ) can also be achieved by connecting several sensors into a net using variety of multiplex techniques and embedding it into or sticking on the surface of the material or structure
以光纖布拉格光柵( fbg )為傳感元件的傳感器具有重量輕、體積小、抗電磁干擾、易於光纖連接、波長絕對編碼等優點,還能把多個傳感器利用各種復用技術連接成傳感網路,埋入材料和結構內部或貼裝在其表面,實現對其特性(如溫度、應變等)的多點監測。Absolute distribution of laser beam intensity is gotten from comparative distribution. the absorption coefficient of material is calculated by measuring transmissive ratio. the influences on temperature increment, stress and phase of laser beam are computed with different time, window cooling, window rotating, shape and material of window, distribution of intensity
由近場光斑相對分佈得到其絕對分佈,測量窗口透過率,求得材料的吸收系數,在此基礎上計算了出光時間長短、窗口有無冷卻、是否旋轉、窗口材料及面型、光強分佈形式對窗口溫升、應力和光束位相的影響。To validate this analysis and to obtain a more accurate characterization of the system, simulated alignments of the schwarzschild objective are performed. using bruning method, the two spherical mirrors of the schwarzschild objective are measured and the measurement accuracy is improved obviously
利用bruning絕對測量方法對euvl微縮投影光學系統的兩個球面進行了高精度檢測,檢測的精度比用zygo干涉儀直接檢測有明顯的提高。A new method of absolute calibration of photodetector sensitivity based on spontaneous parametric down - conversion ( spdc ) biphoton field is described. the process of spdc is studied theoretically. the single photon detection probability and two - photon coincidence probability are derived and the calibration principle for photodetectors is explained. an experimental system has been set up. the sensitivity of a photon - counting photomultiplier tube was measured, and the results were compared with those obtained using conventional method
討論了一種基於自發參量下轉換雙光子場絕對校準光電探測器靈敏度的新方法,著重推導了對自發參量下轉換過程中產生的單光子的探測概率和雙光子的符合速率,從而闡明了絕對測量光電探測器量子效率的原理.基於這一方法對光子計數型光電倍增管的響應靈敏度進行了測量,並將實驗結果與常規方法測得的結果進行了比較In chapter four, distributed fiber bragg grating sensor network is designed, which adopted wavelength - encoded measuring schemes, built up linear array fiber optic sensor network with application of wavelength division multiplexing technology and embedded inside smart layer
第四章設計了分散式光纖光柵應變傳感網路,採用波長編碼的絕對測量方案,用運波分復用技術組成線性陣列型光纖傳感層,並將其集成到智能夾層中。分享友人