single frequency operation 中文意思是什麼
single frequency operation
解釋
單頻工作-
Dds951 series electronic single - phase electric meter is the most advanced static electronic meter in china. the meter designs use large - scale intergated circuit. high reliability step motor, it can the ac single - phase active energv voltage rating : 220v : frequency 50hz, positive and negative two directions and accumulates in one direction. the test singnal is isolated by phototransistor : it also has the function of anti - fraud, and indicates it s operation situation on flash light, so it could be managed very easy
Dds951單相電子電能表，是金雀儀表公司開發的新型電度表。該產品是採用規模專用集成電路，高可靠性步進電機等先進技術製造的國內最新電能試題新產品，用來計量額定電壓為220v ，頻率為50hz的交流單相有功電能，該產品能夠精確計量正負兩方向的有功電能，且以同一個方向累計。 -
1. ) designing and completing the all - solid - state blue laser of single - frequency operation
1 ）設計完成了全固化單頻藍光激光器。 -
This waveform library not only contains those typical radar signals like single - carrier frequency signal, encoded signal, lfm etc, but also include many hybrid modulated signals, like fsk / psk signal, fsk / ppm signal, psk / ppm signal, pseudo - random fsk / psk signal, etc. we use visual c + + 6. 0 to implement this software program, this makes it easy in control operation and provides a nice human - machine interactive interface
波形庫中既包含了傳統的雷達波形，如單載頻脈沖信號、 lfm 、編碼信號等，又包括了復合調制波形，如fsk / psk信號、 fsk / ppm信號、 psk / ppm信號、偽隨機fsk / psk信號等。採用vc編程實現，使其具有友好的人機界面和靈活的控制操作。 -
The principle advantages of vcsels over conventional edge - emitting lasers lie in ultralow threshold current, small far - field divergent angle, high modulation frequency, potential for wafer level testing and the ease for single longitudinal mode operation and two - dimension integration. as a result they show considerable promise for applications such as optical fiber communication, parallel optical interconnects, optical information processing and neural networks, etc. a direct coupling theoretical model in quasi - three - dimension for the gain - wave guide vertical - cavity surface - emitting lasers has been created in this paper
它與傳統的邊發射激光器相比具有更優越的特性，例如，具有極低的閾值、較小的遠場發散角、調制頻率高、易實現單縱模工作和二維集成，無須解理封裝即可進行在片測試等，所以，它被廣泛應用於光纖通訊、并行光互聯、光信息處理、光神經網路等領域。 -
3. ) designing and completing the cw yvo4 / ktp laser of the whole cavity with watt level. and obtaining the 1. 3w green laser of single - frequency operation, the fluctuations of the laser ' s power is less than 1. 5 % ( 3 hour ), when the laser is free running
3 ）試制了整體腔瓦級連續單頻綠光激光器，獲得1 . 3w穩定的單頻綠光輸出，單頻綠光激光器的長期功率穩定度小於1 . 5 （ 3小時） 。 -
Because of complex system, so building simulation module to resolve system. gaining single and joint irrigation areas operation results in different level year and different frequency, so as to realize rational distributing water resources
通過模擬實際計算，得到不同規劃水平年2005 、 2015年在50 、 75以及95的情況下單灌區調度和聯網調水的結果，以期實現對水資源的合理調配。 -
It is important rules that research for dynamic characteristics of the mill system of single - pinion drives in operation to prevent damage from the resonance between fix frequency and bestir frequency in this paper, the pattern of pinion - - - drive shaft - - - decelerator gear vertical vibration in the mill system of single - pinion drives is established
最後，對2 . 6 13m的磨機系統進行了動態特性的實例分析。研究邊緣傳動磨機系統的動態特性，對避免由於激勵頻率接近或等於系統的固有頻率而導致共振及設備的失效，預測系統在可能激勵下的響應特性，優化系統結構等等都具有很重要的意義。 -
In the experiment, we make the curve of the relation of the output light ' s polarization direction and pump light ' s polarization direction. and the result is 8 : 1 of the output light ' s polarization rate, when the pump light is linear polarization. using the above analysis. we design the blue laser of single - frequency operation
測量了輸出激光偏振方向隨泵浦光偏振方向變化的關系曲線，得出用線偏振光泵浦時輸出激光的偏振度大約為8 ： 1 ，加類位相匹配的倍頻晶體后，基頻光的偏振度大於150 ： 1 。
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