泵頻 的英文怎麼說
中文拼音 [bèngbīn]
泵頻
英文
pump frequency-
Under the incentive of the civil - market demanding such as laser material processing and the military - market demanding such as a new generation of laser weapon candidate and icf, diode - pumped solid laser ( dpsl ) develops rapidly worldwide. as an important application, diode - pumped intracavity - frequency - doubled laser is attached much importance in recent years, but there still remain many problems unresolved completely. in this paper, i have given some abecedarian study results on some of these problems theoretically and experimentally
因工業激光材料加工等民用市場的需求以及慣性約束聚變和作為新一代激光武器候選器件等軍方需求的推動，國際上高功率二極體泵浦固體激光器（ dpsl ）的研究進展迅速，作為dpsl的一個重要應用，內腔倍頻一直得到大家的重視，但仍有許多未徹底解決的問題和理論上的不完備之處，本論文擬對其中的一些問題作一初步的理論和實驗研究。The parametric design of the speed changeable sheet - fed gear - shaft combinative mechanism
離心泵變頻調速參數的優化控制The frequency conversion regulation of the condensate pump
凝結水泵變頻調節Contrapose to the instability of the third - order charge - pump pll system, the loop optimization method is employed in system level design to decide the bandwidth and phase margin, therefore the loop bandwidth locates at the maximum phase margin to guarantee the stability of the system. according to tsmc 0. 35 m sige bicmos model, the sub - circuits in the designed pll and the whole system are simulated and verified by the cadence spectre
5 .根據tsmc0 . 35 msigebicmos工藝模型，利用cadencespectre模擬軟體對所設計的電荷泵鎖相環路中各個模塊及整個系統進行了模擬模擬，模擬結果顯示，在1 . 5v電源電壓下，頻率為200mhz的參考輸入信號，輸出中心頻率為800mhz ，分頻電路採用4分頻，環路帶寬為10mhz ，捕獲時間大約為0 . 92 s ，功耗大約為15mw ，達到了設計指標。This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective
本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷，利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法，提出了在液壓系統中加一個定差減壓閥的新思路，較好地解決了液壓伺服系統存在的上述問題。Presents the energy saving principle of a frequency - controlled pump and points out the applicability of the law of similitude for centrifugal pumps and the conception of constant efficiency curves
摘要闡述了循環水泵變頻調速的節能原理，提出離心水泵相似定律的適用性和等效率曲線概念。Basing the theory of finite elemental modeling and ansys software, this text build the entitative model and elemental model of the main parts and carry the modal analysis. and we get the natural frequency and shaking type of all steps. and then we compare the analysis results with the results of experimental modal analysis, testing the correctness of the elemental model
本文根據有限元建模理論，並利用ansys有限元分析軟體，分別對螺桿泵地面驅動系統的上述主要部件進行實體建模、有限元建模以及模態分析，確定這些部件的各階固有頻率和振型。Changes of the longitudinal and transversal wave velocities in different directions and the rock velocity anisotropy as a function of confining pressure have been studied under laboratory ultrasonic frequency for shale and sandstone with marked foliation, which had been saturated by the fluids with different viscosity kerosene and vacuum pump oil and salinity distilled water, 50000
利用不同黏度煤油和真空泵油不同礦化度蒸餾水50mg l和150mg l的nacl溶液的流體對頁巖和具有明顯層理的砂巖進行飽和，在實驗室超聲頻率下研究樣品不同方向縱橫波速度以及各向異性參數The pll consists of a crystal oscillator, a ring voltage - control - oscillator, a frequency divider, a phase / frequency detector, a charge pump and a loop filter
設計的電路包括20mhz晶體振蕩器，鑒頻鑒相器，壓控振蕩器，固定分頻器，電荷泵和低通濾波器。Utilize cepstrum and diagnose the early fault of the hydraulic pump
利用倒頻譜診斷液壓泵早期故障The experiment of intracavity doubling of a 946 nm nd : yag laser with an lbo crystal has been done at room temperature. a continuous wave 473 nm laser is obtained with 235mw output power at a pump power of 20w. the laser beam quality of 473 nm is good as well
對腔內倍頻輸出473nm激光進行了初步的實驗研究，在泵浦功率為20w時， l獲得了光束質量較好的連續波形式的藍光激光輸出，其功率為200mw 。Enter calcium, which, by inhibiting the actiity of the sodium pump, regulates signal firing, and may consere energy and keep the high - frequency cells from burning out
加入鈣離子，可以抑制鈉泵的活動，調節信號的產生，可以保存能量，保護高頻細胞。The spectrum analysis of trouble of pump
液壓泵故障的頻譜診斷及排除On the other hand, by meticulous diagnosis functions, such as signature analysis, trend analysis, spectrum analysis, the fault classification, position, severity and trend about the high - pressure getting rid of squama while running can be discovered and forecasted
另外，該系統的精密診斷功能，包括歷史數據回放分析、趨勢分析、時域分析、頻譜分析，能對水泵的故障類型、部位、嚴重程度以及發展趨勢進行分析和預測。It is the combination of computer - controlled water pumps and stroboscopes that make the droplets appear to suspend or drift upwards and downwards
你能夠看到水點在空中停留或上下飄移，全賴展品背後十多組由電腦控制水流速度的水泵和可調頻閃儀。The papers study the technology of variable speed drive in electric submergible pump
本文主要論述了潛油電泵系統變頻調速的應用技術。From those studies, we may know the variable speed drive in electric submergible pump is feasible and may run reliably
根據以上的研究可知，潛油電泵系統採用變頻調速是可行的，並且能可靠地運行。This papers mainly study the influence of variable speed drive to the electric submergible pump system, for instance, long motor leads effect and common - mode voltage
本文主要是分析了變頻器對潛油電泵系統的影響，特別是長線傳輸問題及共模電壓問題。In this study, the load charateristics of submergible centrifugal pump and the influence of various regulating methods on energy dissipation are analyzed. the loading capacity of the submergible motor in variable speed drive control process is analyzed. the papers simple discribe the basic structure of the variable speed drive system in electric submergible pump > principle of pwm inverter and the basic structure of igbt
在研究中，對潛油離心泵負載性能以及閘閥調節和調速調節對能耗的影響進行了分析；對潛油電動機在變頻調速的負載進行了分析；對潛油電泵變頻調速系統的基本結構、 pwm逆變器原理以及igbt的基本結構進行了簡單介紹。The abnormal conditions of polyester vaccum system such as the frequent exchanging of liquid - ring pump in prepolycondensation, the occlusion of scraped condenser and vaccum atmospheric leg, the eg spray flow decreasing of vaccum injection pump, the working performance on the low side of the injection pump itself were analysed
摘要對聚酯真空系統的異常情況如預聚液環泵頻繁切換，刮板冷凝器、真空大氣腿堵塞、真空噴射泵eg噴淋流量降低，噴射泵本體工作性能偏低等進行了分析。分享友人