泵輸給 的英文怎麼說
中文拼音 [bèngshūgěi]
泵輸給
英文
pump-fed-
We have firstly developed the all fiber femto - second laser, but its average output power is only tens of milliwatt. with the development of cladding pumped technology, it is the efficient way to amplifying the output power
在國內我們已經首先研製成功了全光纖飛秒激光器，但平均輸出功率只有幾十毫瓦，包層泵浦技術的成熟，無疑給其進一步放大功率提供了技術保障。In chapter four, according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps, the parameter equations of vane ' s modular curve of centrifugal pump are given, which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a. the results show that, in designing process of vane ' s modular curve of centrifugal pump, the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump, or the design of the modular curve of centrifugal pump is the kernel of hydraulic design
第四章依據固液兩相流泵的邊界層理論及對主流區速度場的分析，給出了離心泵葉片型線的參數方程；它是以葉片安裝角為參變數，以引入的速度系數k _ v作為中間因子，將兩相流泵的邊界層理論和歐拉理論聯系起來? ?它說明了這樣一個事實，在離心泵葉片型線的設計過程中，它的整個形態或參數的確定都關繫到兩相流體的流動特性和泵的輸出能力，或者說，離心泵型線的設計是其水力設計的核心。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 。A metering pump regulates the amount of lead to the pour lead with no excess lead return to the pot.
計量泵控制著輸給澆注頭的鉛量，沒有過量的鉛返回鉛鍋。Hunan general motor pump industry limited a complete range of products, involving metallurgical machinery, mining transport, energy development, power plant auxiliary equipment sets, urban transport, ships, ports and offshore drilling platforms electrical and mechanical equipment, power distribution equipment, high - rise city, - complete sets of equipment, water supply and drainage pumping station complete sets of equipment, water projects, environmental protection projects, as well as wire and cable, electrical materials
湖南通用電機泵業有限公司的產品門類齊全，涉及冶金機械，礦山采運，能源開發，電站輔機成套，城市交通，船舶，港口和海上鉆井平臺機電設備，輸配電設備，城市高樓電控成套設備，給排水泵站成套設備，水利項目，環境保護項目以及電線電纜，電工材料等。The plant has its own water supply system with the capacity of 150 tons per hour. there is a 10kv power supply line and transforms with the total capacity of 8459kva
工廠用水自給有深水井及泵房三套供水能力150噸時，工廠有10kv城市輸送線，全廠變壓器總容量8495kva 。The influence of pipeline flow resistance on net speed of vacuum pump is analyzed in long - distance pipeline vacuum drying, the calculation method of net speed of vacuum pump is given and checked up with site experiment
摘要分析了長輸管道真空乾燥中真空泵組的有效抽速受管道流阻的影響，給出了有效抽速的計算方法，並用現場實驗對其進行了驗證。The question of power waste caused by pumping station sets " illogical running project is proposed. genetic algorithm can quickly find the optimized result in global. using this characteristic to control the pumping station sets " running and stopping can attain the object of saving power
針對污水泵站內機組優化啟停的問題，提出了採用遺傳演算法進行優化組合，給出了泵站機組啟停的控制方案，並進行模擬研究，模擬結果顯示，採用遺傳演算法優化泵站機組啟停控制，可使泵站機組運行在最佳節能狀態，且能夠將輸入污水泵站的污水等量排出，實現了節能和減少污染的控制目標。This series of pumps are especially suitable for water supply and discharge in high and low residence constructions, hospitals, hotels, department stores and office buildings, water for fire control, distant distance transportation, as well as water supply in production process
該系列泵特別適用於高低層建築的住宅、醫院、旅館、百貨大樓、辦公大樓等的給排水及消防用水、遠距離輸送及生產工藝循環中用水等。The system design includes information model, function design and dada - base logical relation. the information model is established by entity - relation method, and the e - r picture is ploted, and the in - out diagram is gived out ; the fuction designed is established by idef0 method, the subsystems are designed according to the model in detail, we give out the explaining document and explain the calculation method for the model ; we design the data - base logical relation by the above models, decide the distributing and partition the relation diagram of the data - base, then define the logical structure of the diagrams
其中信息建模採用實體-聯系的方法建立系統的信息模型，並用idef1x圖表示出該信息模型，同時給出電泵物資管理系統輸入輸出信息表；功能設計用idef _ 0方法建立電泵物資管理系統分系統功能模型，參照功能模型對內部各子系統進行詳細設計，給出分系統功能模塊的詳細說明書及相應功能演算法描述；數據庫邏輯設計依據系統分析結果、信息模型及功能模型，確定電泵物資管理系統數據庫分佈，劃分數據庫內部關系表，定義表的具體邏輯結構。Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered
在此基礎上，給出了一整套bbo - opo激光參數設計方案：計算了不同泵浦強度下的參量放大倍數；詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線，以及非共線類相位匹配調諧曲線；分析了走離角對非線性系數和群速匹配的影響；計算了參量過程的允許角；計算了bbo - opo的理論閾值條件；分析了飽和與泵浦光束的消耗過程；給出了轉換效率與超過泵浦閾值的倍數的關系；討論了轉換效率與輸出鏡反射率的關系；討論了線寬控制的各種方法；研究了利用非穩腔改善光束質量的方法；考慮了bbo晶體的設計。We calculate the stress fracture limit, critical index limit and melting limit in a high power double clad fiber laser. the results show that the average output power decreases when the temperature is too high. to maintain the pumping efficiency and the output power, some cooling methods should be used when the output power reaches a certain level
給出了熱效應對雙包層光纖激光器影響的裂解極限、臨界折射率極限和熔化極限與光纖結構參數和泵浦功率的表達式，理論分析和數值模擬結果表明對于高功率的雙包層光纖激光器溫度很高時激光增益下降，在一定的功率水平上需要進行外界的冷卻，以保證泵浦激光的效率和高功率的激光輸出。The analyses given in this paper to quasi - three - level for 946 nm laser are complete. the relation between 946 nm laser transmission and optimal crystal length has been derived from the rate equations describing the population inversion and the photon density in the laser cavity in the steady - state case. the minimal claims to coating have been given on the base of contrasting 946 nm transmission with 1064 nm transmission in the condition of different cavity losses and how the pump beam radius in the laser crystal and optimal crystal length affect the laser threshold and output power of 946 nm laser has been given as well
對產生946nm譜線的準三能級結構給出了較為完整的分析，利用激光諧振腔處于穩態時的速率方程，導出了準三能級nd ： yag946nm起振時，透射損耗與最佳激光晶體長度的關系，在與1064nm透射損耗相比較的基礎上，給出了不同的腔損耗情況下的最低鍍膜要求，並且給出了激光閾值、輸出功率和最佳激光晶體長度及泵光光斑大小的關系，這為設計室溫下高效運轉的946nm激光器的提供了理論基礎，這種分析方法對研究此類低增益，準三能級或三能級激光系統輸出特性有借鑒意義。In this paper, on the basis of the analysis of gear pimp working principle, the mechanism of flow pulsation and methods of reducing flow pulsation are pulsation are studied. the computing formula of transient flow rate and the coefficient of flow pulsation are deduced. the relationship between the gear pump flow pulsation and the construction parameters of the gear is studied
本文在齒輪泵工作原理和流量脈動產生機理的基礎上，首先從理論上推導了齒輪泵瞬時流量和流量脈動系數的數學模型，分析了齒輪泵的輸出流量脈動與泵齒輪各結構參數之間的關系，並對某型齒輪泵進行模擬分析研究，給出了齒輪泵的流量脈動分析結果。Aiming at the vibration issue of taiyangsheng pumping station of northeast pipeline network, the causation of the vibration is tested and analyzed in this paper. the vibration mitigation method for this pipeline is given out, and the finite element analysis of the pipeline vibration and base isolation is progressed. the result of the test and analysis indicate that the effect of the rubber pillow vibration mitigation is effective for the pipeline system
本文針對東北輸油管網太陽升泵站出口管道的振動問題，分析測試了該管道的振動原因，給出了適用於該管道的減振方法，並進行了管道振動與隔振的有限元數值分析，對比了管道減振前後的振動情況，測試分析結果表明採用橡膠墊減振后減振效果明顯。In the part of the experimental designs, a experimental configuration of an unstable cavity by use of two bbo crystals compensating the walkoff effect and pumped by reflection is presented, and two set of controlling systems designs of open and closed loop are also presented ; we realized closed loop controlling system of bbo optical parametric oscillator tuning system, by using american general scanning inc. ' s controller to control bbo crystal ' s rotation, and scaled the output wavelength with charge coupled device
在實驗設計上給出了利用兩塊bbo晶體補償走離效應返回式泵浦非穩腔的實驗設計，設計了開環和閉環兩套控制系統。通過使用美國通用掃描公司的掃描頭控制bbo晶體的轉動，用ccd對bbo - opo輸出波長進行標定，實現了bbo - opo調諧系統的閉環控制，相對波長調諧誤差小於0 . 04 ，並給出了354 . 7nm泵浦的類相位匹配bbo - opo輸出波長隨晶體轉角變化的理論和實驗曲線。Because of high threshold of 946 nm laser, severe thermal lens effect will appear when the 946 nm laser operations. in the consideration of thermal lens effect, the - optimized folding cavity has been devised. the relation between thermal lens effect and the radius of laser beam waist has been given as well
由於946nm激光閾值很高，需要更強的泵浦功率密度，因此較大功率藍光激光器的熱透鏡效應將會比紅光和綠光激光器更明顯，而熱透鏡效應是影響激光功率提高和激光輸出穩定性的重要原因，所以在考慮到激光晶體熱透鏡效應的情況下，優化設計了折疊腔結構，並給出了熱透鏡效應和折疊腔中腔模半徑大小的關系。This series of pumps are especially suitable for the water supply and discharge in high and low residence constructions, hospitals, hotels, department stores and office buildings, fire control, spraying, distant distance transportation, as well as water circulation in production process, etc
該系列泵特別適用於高低層建築的住宅、醫院、旅館、百貨大樓、辦公大樓等的給排水及消防用水、噴淋、遠距離輸送及生產工藝循環中用水等。Ld - pumped nd : yag, lbo ( type - i critical phase matching ) intracavity frequency doubled, blue laser at 473nm was obtained finally. under the condition of 14w pump power, high power tem00 mode blue laser at 473nm of 1. 1w was obtained. by means of inserting diaphragm into cavity, the power fluctuation and beam mode were improved ; in the experiments, the proportion of special mode matching in quasi - three - level laser was discovered, and the phenomenon were explained reasonedly
實驗上採用對熱效應不敏感的三鏡折疊腔， ld泵浦nd : yag ，類相位匹配lbo作為倍頻晶體，獲得了1 . 1瓦的連續473mn藍光輸出；採用腔內插入光闌的方法，有效克服了功率抖動，同時改善了光斑模式；實驗中發現準三能級激光器存在兩個空間模式匹配比例關系，並對這一現象給出了合理的解釋。At last considering the flow pulsation as objective function, optimization of the parameters of the gear using ga method is brought forward and an optimum model is presented to achieve the optimal parameters of the gear that make the flow pulsation lowest
最後以流量脈動為目標函數，採用遺傳演算法對齒輪泵結構參數進行了優化設計，建立了齒輪泵參數優化數學模型，給出了使輸出流量脈動最小的齒輪泵最優參數。分享友人