light load condition 中文意思是什麼
light load condition
解釋
空載狀態-
The research result indicated : for the strip primary mirror discussed in this article, the hexagon light - weighted cell has the best structural rigidity quality, the square cell is a little worse, the triangle cell is the worst ; there is an optimum on primary mirror thickness ; on condition of 1g gravity load combining with 4 centigrade uniform temperature rising, the thinner and higher of the flexible support reed, the better of the primary mirror surface figure. the decision of the structural parameters of the flexible support reed must take static rigidity, dynamic rigidity, static strength and dynamic strength of primary mirror assembly into account
研究結果表明：對于本文的長圓形主鏡，採用正六邊形輕量化孔，鏡體結構剛性品質最好，正方形次之，正三角形最差；主鏡鏡體厚度存在最佳值；主鏡組件在1g重力、均勻溫升4共同作用的工況下，主鏡柔性支撐簧片厚度越小、高度越高，主鏡綜合面形誤差（ p - v值）越小，但同時主鏡組件的剛體位移增大、固有頻率下降，因此柔性支承結構參數的確定要綜合考慮主鏡的綜合面形誤差和主鏡組件靜態剛度、動態剛度、靜態強度和動態強度等因素。 -
In chapter 2, author points out firstly that the elastic deformation of elastic units of a robot ' s wrist force sensor will be enlarged by the end - effector, the instruments and the work pieces, so the elastic deformation of the sensor will influence the location accuracy or kinetic accuracy of end point of a robot, under the condition of that the robot technology facing the developing of heavy load, light mass and high accuracy. it is discussed respectively that the relationship between the differential kinemics in the sensor ' s coordinate and the location accuracy or kinetic accuracy of the end point. error matrixes of location and kinemics of the end point are presented respectively based on the differential kinemics in the sensor ' s coordinate, and the on - line error compensation methods are introduced subsequently
第二章首先指出機器人腕力傳感器彈性體的彈性變形經過機器人末端連桿、工具、工件等的放大后，會對機器人末端精確定位和運動產生的影響；然後分別研究了傳感器坐標系內的微分運動與機器人末端工件精確定位、運動的關系；在此基礎上，研究了基於腕力傳感器彈性體微分運動的機器人末端定位、運動誤差的誤差矩陣及其在線誤差補償方法；基於機器人動力學的機器人末端定位、運動誤差的誤差矩陣及其在線誤差補償方法；最後，以puma型機器人為對象，給出了基於腕力傳感器內微分運動的機器人末端定位、運動誤差及其在線補償方法的模擬實例：給出了基於機器人動力學的機器人末端定位、運動誤差及其在線補償方法的模擬實例；模擬結果表明， 1 ）基於腕力傳感器的機器人末端定位誤差在腕力傳感器允許的載荷下可達十分之幾毫米級。 -
When tuyere of double disk is jammed, the current of fan will fall to light load current value ; therefore, checking current of fan will find this phenomenon and the system will deal with this condition according to pre - designed program
，當雙盤內風口堵塞后，鼓風機電流將降低到空載電流值，故檢測鼓風機電流會及時發現這種堵塞現象，系統會根據預設的程序進行處理。 -
Conclusions are drawn as follows : ( 1 ) regulating the electromotor speed by adjusting the input voltage is easy to carry out, and it can be used in most of the oil fields ; ( 2 ) good energy - saving effect can be achieved under the condition of light load on the motor ; ( 3 ) the voltage cannot be regulated in a large range, and the optimal range of the voltage regulation is less than 10 % of the rated voltage
由此得出結論： （ 1 ）調電動機端電壓調速方法簡單，一次性投資少，易於實現，對於一般的油田都適用； （ 2 ）調壓調速只有在輕負荷時，即在負荷遠未達到滿負荷時才有一定的節能效果，適用於油田普遍存在的「大馬拉小車」的情況； （ 3 ）電動機調壓調速的范圍不能太大，電壓調整的最佳范圍為額定電壓的10 %以內。 -
The switch power will operate at ccm condition when circuit is set to pwm mode. when pfm mode is selected for the operation mode, the switch power will still operate at pwm condition with the high load, the system will cancel the pwm mode and enter the pfm mode only when the load is drop to a certain threshold to boost the operation efficiency at light load, make the ic has high efficiency within wide load range
選擇pwm模式，開關電源將工作在ccm模式下;選擇pfm模式，在負載較高的情況下，開關電源仍然工作于pwm模式，只有當負載降低到一定程度時，開關電源才退出pwm模式，而按照pfm工作模式操作，跨過一部分時鐘周期，降低頻率相關功耗，以提高輕負載時低效率的問題，使得開關電源在很寬的負載范圍內都具有高效率。 -
However these converters become more complicate. phase - shift zvs technique has been used in bidirectional dc / dc converters since it can realize zvs for all switches without auxiliary switches. however when the amplitude of input voltage is not matched with that of output voltage, the current stresses and rms currents of the converters become higher, in addition the converters can not achieve zvs under light - load condition
諧振、準諧振或多諧振技術方案，變換器的電壓電流應力較高，變頻控制增加了濾波器設計的難度；能量緩沖吸收電路或有源鉗位電路方案，由於需要增加多個額外輔助元件，增加了變換器的復雜性；全橋相移技術方案，由於主電路無需增加額外元件，只需利用相移控制，即可實現軟開關，因此引起關注。 -
The inductive dc / dc converter is the traditional approach for power management. but with the development of sub - micron technologies and the use of high value multi layer ceramic capacitors, the efficiency of charge pump is improved which make charge pumps are still widely used not only in light load application but also in higher output currents condition
傳統的電源管理方法是使用電感模式的dc / dc轉換器，但是隨著亞微米技術的發展和多層陶瓷大電容的使用，電荷泵的效率得到提高，所以電荷泵不僅在低功耗而且在較大輸出電流應用中仍然得到廣泛的應用。
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