泵激系統 的英文怎麼說
中文拼音 [bèngjīxìtǒng]
泵激系統
英文
pumping system-
Other common devicesintravenous medication pumps allow the nursing staff to titrate medications ; foley catheters and urine collection bags aid in monitoring urine output ; sequential compression devices squeeze the lower extremities and reduce the incidence of deep venous thrombosis ; transvenous pacemakers stimulate the patient ' s heart to beat ; dialysis machines remove fluid and correct electrolyte and acid - base disturbances ; intraaortic balloon pumps assist the heart ' s contractility ; and neurologic monitoring systems measure intracranial pressure
其他常用裝置靜脈內給藥泵由普通護士用於滴定藥物;弗利氏導管和集尿袋幫助監測排尿量;連續壓迫裝置擠壓下肢,減少深部靜脈血栓形成;經靜脈起搏器刺激病人心臟跳動;透析儀除去液體,糾正電解質和酸堿紊亂;主動脈內氣囊泵支持心臟收縮;神經病學監測系統測定顱內壓。It is mainly added a set of system for the collection of the optical pump and a furnace heated to a high temperature besides the ft - infrared and raman spectrometer
它主要在紅外光譜儀和激光拉曼光譜儀的基礎上加設了一套實時高溫紅外光學泵浦採集系統和樣品高溫加熱爐。Intravenous medication pumps allow the nursing staff to titrate medications ; foley catheters and urine collection bags aid in monitoring urine output ; sequential compression devices squeeze the lower extremities and reduce the incidence of deep venous thrombosis ; transvenous pacemakers stimulate the patient ' s heart to beat ; dialysis machines remove fluid and correct electrolyte and acid - base disturbances ; intraaortic balloon pumps assist the heart ' s contractility ; and neurologic monitoring systems measure intracranial pressure
靜脈內給藥泵由普通護士用於滴定藥物;弗利氏導管和集尿袋幫助監測排尿量;連續壓迫裝置擠壓下肢,減少深部靜脈血栓形成;經靜脈起搏器刺激病人心臟跳動;透析儀除去液體,糾正電解質和酸堿紊亂;主動脈內氣囊泵支持心臟收縮;神經病學監測系統測定顱內壓。At first, modeling of these divvies by rate equations to obtain expressions for threshold and slope efficiency is given. on the case of this theory, the large numbers of literatures and datum are consulted, and the laser is home studied. through rationally selecting and improving the reflector surface, ensuring the beam quality, increasing farthest the absorption path, and improving effective pumping frequency ; through designing the water cooler of yag bar, the volume of laser is half the same internal and international production, and the output power is get to the extremum of the same international production
並在此基礎上查閱了大量文獻和資料,對該種激光器進行了深入的研究,通過對yag棒直徑的合理選取併合理地改進反射鏡面,從而既保證了光束質量又最大限度的增加了吸收長度,有效的提高了泵浦效率;在不影響泵浦的前提下,通過有效縮短yag棒的長度減小輸出損耗;對yag棒的水冷系統進行優化結構設計,使激光器體積減小到國外同類產品體積的一半,而輸出功率已達到國外同類產品的極限值。So the pipe system sends out noise because of resonance. especially the frequency 250hz of pulsating water is in close proximity to natural frequency of pipe, so the 250hz is a dangerous frequency to the pipe system. there is another reason why the noise is reached to 110db ( a ) in pump room that the noise is magnified by the cistern because of the resonance of cistern
特別是激勵頻率為250hz的頻率分量恰好與管道系統的固有頻率相接近,其引起的管道振動對噪聲的貢獻最突出,同時也與水泵房房腔的固有頻率相接近,從而引起房腔共鳴發聲,使噪聲進一步被放大,以至於噪聲最大處高達105db ( a ) 。We built a table - top ultrashort laser system which based on ti : sapphire front - end and discharge pumped krf amplifier. with double pass off - axis amplification module, the imj uv pulse was amplified to 50mj
建立了桌面krf超短脈沖激光系統,採用放電泵浦krf準分子激光放大器進行超短脈沖激光的直接放大。Finally finding that there are two reasons that cause vibration of pipe and noise. the one is the vibration of pump which transfers to pipe and stimulates the vibration of pipe. the second is the stimulating frequency of pulsating water is coherent with the natural frequency of pipe
最後得出管道的振動主要是由於兩個原因,一是泵的機械振動傳遞給管道,引起管道的振動;二是由於水流的脈動激勵頻率與系統的固有頻率相吻合,引起管道的共振發聲。In this paper, we study inversionless lasing of frequency up - conversion in an open v - type system with incoherent pump. making theoretical analysis and numerical calculation by density - matrix equations of motion, we derive the conditions for the onset of lwi and discuss the effects of the parameters of the system, the detuning of driving field and probe field on the gain, and discuss nonlinear effect in the frequency up - conversion regime. we also give stability and transient analysis
本論文研究了具有非相干泵浦的開放v型系統頻率上轉換無粒子數反轉激光,利用密度矩陣運動方程,通過理論分析和數值計算,得出該系統產生無粒子數反轉激光的條件,討論系統各參數的變化和驅動場與探測場的失諧對激光增益、色散和粒子數差的影響,還討論了頻率上轉換區域的非線性效應,分析了增益的穩定性及系統的瞬態演化過程。In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems
第二章討論了驅動場的相位漲落對開放的v型三能級無反轉激光系統的影響,根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統增益、色散和粒子數差的影響,得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。By the method of matrix optics, the waist width and imaging distance of gaussian beams through the coupling system are calculated. by the result of the calculation, a set of double planoconvex lens coupling system are designed and manufactured. the coupling efficiency is up to 92 %
利用矩陣光學的方法,計算了高斯光束經耦合系統聚焦后的像距和束腰寬度,以此為指導設計加工了一套雙平凸鏡耦合系統,耦合效率達92 ;在以上基礎上研究了泵浦光與振蕩光在激光晶體中的匹配,計算出了泵浦光經耦合系統后的最佳焦點位置。On the design of the system, the thickness measure system of mems chip is built based on lbu and pump - probe technology. on the analysis of data, the reflectivity curve is analyzed using the law of reflectivity change induced by ultrasound, and the thickness is calculated using the system designed by the article, to aluminum film the size of about 20nm can be measured, when the film be measured is single layer, the relative error of the system is less than 2 %, when the film be measured is double layer, the relative error of the system is less than 10 %
在基礎理論方面研究了激光(特別是超短脈沖激光)超聲的激勵機理,探討了激光調制技術以提高系統信噪比,闡述了泵束探針束技術及相關實驗設置;在系統設計上,以激光超聲為基本原理,以泵束探針束技術為系統設計方案完成了mems基片厚度測量系統的設計;在數據分析方法上,利用聲致光反射率變化的一般規律對測得的光反射率曲線進行分析,確定超聲回波在薄膜兩界面間來回傳播的時間,以計算薄膜的厚度。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。Gt optics co., ltd. engaged professionally in the research and development, manufacturing, and marketing of high power laser diodes, fiber coupled laser diodes, laser diode pumped cavities, diode end - pumped solid lasers and laser diode drivers
吉泰光科產品有大功率半導體激光器、半導體激光(側面/端面)泵浦模塊、光纖輸出半導體激光器系統、半導體激光器驅動源等。Solid laser pumped by semiconductor laser has the advantages of laser diode and solid laser, so it develops rapidly in recent years and gets the extensive application in the fields of military, communication, processing and scientific research, etc. in order to meet the demands for laser power of semiconductor solid laser pump solid yag laser, i synthetically adopt the singlechip digital automatic control technology which is extensively used in the intelligent instruments, products of electromechanical integration and automatic control system, lcd technology, pc switch technology and steady voltage, invariable current technology
半導體激光泵浦的固體激光器由於兼有了激光二極體和固體激光器的雙重優點,近年來得到迅速發展,並在軍事、通訊、加工和科研等領域中得到廣泛的應用。本文針對半導體固體激光器泵浦固體yag激光器系統對激光電源的要求,並且綜合運用了當前在智能儀表、機電一體化產品、自動控制系統中應用廣泛的單片機數字化自動控制技術、 lcd顯示技術、 pc開關技術及穩壓、恆流技術,研製了脈沖半導體激光電源。Furthermore, the variation of sbs performance parameters, such as threshold and reflectivity, with parameters of pumping laser and multi - mode optical fiber has been researched by analysis of the numerical solution. experiments have also been operated in ld - pumped solid - state laser system with high - repetition more than 100hz and narrow pulse - width between 15ns and 47ns. the experimental results agree with calculated results by the theoretical model
第三章在重復頻率100hz 、脈寬15 47ns可調的dpl系統中,實驗研究了不同芯徑、長度的光纖在不同能量、脈寬的激光泵浦下sbs閾值、反射率等性能參數等變化趨勢,實驗結果和理論分析一致。The reason that bump vibrates when working is bump system ' s stimulus frequency is quite consistent with its inherent frequency and its hydraulic system ' s impact. by analyzing bump working frequencies " relation to its inherent frequency, the 150 - liter per minute input flow is recommended at exiting function parameters
結合動應力分析結果、固有頻率分析結果及疲勞壽命分析結果可以看出:系統的激擾頻率與結構一階固有頻率比較一致以及液壓系統的沖擊是引起泵車工作時振動的主要原因。The relaxation oscillation in solid - state laser with relaxation oscillation pumping is studied theoretically by the rate equation. the undulation of the laser photon density contains relaxation oscillation frequency itself and that of pumping. when those two frequencies are close, the oscillation will be resonated
我們用速率方程小信號近似方法對泵浦帶有弛豫振蕩的固體激光器的弛豫振蕩的特性進行了系統的理論研究,發現實際光子數的起伏同時具有自身固有的弛豫振蕩頻率和泵浦光的弛豫振蕩頻率兩種分量。In the fourth chapter, the coupling system between the fiber - coupled - output high power semiconductor laser acting as the pumping source and laser crystal is studied
第四章研究了作為泵浦源的光纖耦合輸出大功率半導體激光器與激光晶體間的耦合系統。A diode pumped cr4 +, nd3 + : yag crystal self - q - switched laser is demonstrated with fiber coupled ld and the imaging system. the pulse laser with 1064 nm wavelength is obtained. the maximum average output power is 3. 36 w, and the pulse duration is 65 ns, and the repetition rate is 87 khz, the opto - optical efficiency is 15. 3 %, the slope efficiency is 23. 8 %
用光纖耦合輸出的ld ,通過成像系統會聚,對二極體泵浦的自調q激光器進行了實驗研究,得到了平均功率3 . 36w ,脈沖寬度65ns ,重復頻率87khz的1064nm脈沖激光。According to the status of sewage in a pharmaceutical factory in harbin, uses the multistage spray heat exchanger in the sewage - source heat pump system
摘要根據哈爾濱某制藥廠的污水情況,在污水源熱泵系統中採用多級淋激式換熱器作為污水側換熱器。分享友人