瞬時光譜 的英文怎麼說
中文拼音 [shùnshíguāngpǔ]
瞬時光譜
英文
instantaneous spectrum-
In this method of measuring time - resolved spectrum, a special light beam modulator translates the time - distribution of an optical spectrum into a space - distribution of light intensity of the light beam, and the space - distribution spectrum is dispersed by a multi - spectrometer, then it is detected by an ordinary 2 - d ccd array detector
瞬態時間分辨譜測量方法的主要思想：使用特殊光束調制器把光譜隨時間的變化過程轉化為光強的空間分佈，經色散后，以二維探測器接收並轉換光信號為電信號，用通用計算機控制採集並處理光譜數據。For getting temperature of transient thermal - radiation, lodging the method of measuring the temperature of the time - resolved thermal - radiation with least duple multiply theory, and measuring the temperature of wu lamp with this method, the results showed that the method have best properties for measuring temperature, and measuring the temperature of time - resolved spectrum of matter under pulse laser shocking with this method, getting the primary results
為了解析瞬態熱輻射溫度，提出用最小二乘法對由多道分析器採集的時間分辨熱輻射譜進行全譜溫度擬合的方法，在以鎢帶燈為輻射源的溫度測量中實現了較高精度的溫度擬合，用此方法對激光沖擊靶材所產生熱輻射的時間分辨譜溫度進行測量，得到了初步結果。The key technology of measuring time - resolved spectrum is to design and make the special light beam modulator that is used to the time - resolved spectrum detecting
瞬態時間分辨譜測量方法的關鍵技術：設計和研製了專用於時間分辨譜採集分析的光束調制器。This feature reflects the physical phenomenon of breaking of waves and development of shock waves. in the fields of fulid dynamics, ( 0. 2. 1 ) is an approximation of small visvosity phenomenon. if viscosity ( or the diffusion term, two derivatives ) are added to ( 0. 2. 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity. a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection - diffusion pr oblem approachs to the solutions of ( 0. 2. 1 ) when the viscosity goes to zeros. another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc. numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con - ervation laws ( 0. 2. 1 ) as the discretation parameter goes to zero. the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so - lutions ( i, e. the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ). using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0. 2. 1 ) in some sense of definiton
當考慮粘性后，即在數學上反映為（ 0 . 1 . 1 ）中多了擴散項（二階導數項） ，即使很粗糙的初始數據，解在瞬間內變的很光滑，這由於流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題（ 0 . 1 . 1 ）的解，這就是正則化方法。另一辦法從離散（數值）角度上研究僅有對流項的守恆律（ 0 . 1 . 1 ） ，如構造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構造近似解（常表現為分片多項式）來逼近原守恆律的解。For investigating thermal character changing of matter with shock compression, we need to measure the time character of radiating spectrum of matter with shock compression and its temperature, that is to measure transient time - resolved spectrum and its temperature
為了研究沖擊加載下物質熱特性的變化，需要測量沖擊壓縮態物質所發射脈沖熱輻射光譜及溫度的時間特性，即進行瞬態光譜的時間分辨測量及溫度解析。The time resolution of 43 s and 1 78 s, the wavelength range of 350 - 800nm and the wavelength resolution of 0. 3nm have been reached in the experiment of xe flash - lamp spectral measuring. the time resolution of 100 s is obtained in the experiment of spectral measurement of matter under shock compressed with the same wavelength detecting range and the same wavelength resolution
研製成功了測量裝置，在xe閃光燈的瞬態光譜測量中，分別獲得了43ps和廠8ps的時間解析度，在靶材的沖擊壓縮瞬態光譜測量中，獲得了100卜s的時間解析度。分享友人